The EPO series is a line of epoch-making power supplies, using new method of power amplifier unit. They provide high efficiency (approx. 76%) unimaginable with previous products, while being even more light weight and compact. These epoch-making AC/DC power supplies feature even further improvements to standard features such as the flexibility, high output stability , and powerful supplies of electric power that NF power supplies are known for. Nihon Denkei

1. Epoch-making power supplies that offer optimal power line
environments for everything from production and
inspection lines to research and development.
Compact, Lightweight, High Efficiency (Approx. 76%)
AC 0V-300.0V, 5.0Hz-550.0Hz, DC 0V-424.0V
Single Phase Systems 2kVA-12kVA
Phase Mode Selectable (Single Phase/Three Phase/Single Phase Three Wire) Systems 6kVA-36kVA
NF Corporation

2. 2
Do
You
Know
How
Disturbed
Electric
Power
Line
Can
Be?
According
to
equipment
operation
conditions,
voltage
can
become
unstable
and
waveforms
become
distorted
in
the
power
supplied
from
factory
distribution
board
and
receptacles.
This
can
hinder
manufacture
and
measuring.
Data
from
One
Factory
Daily
Line
Voltage
Variation
Distortion
of
waveforms
during
operation
of
manufacturing
equipment.
The
EPO
series
provides
a
reliable
power
line
environment
by
improving
factory
and
laboratory
voltage
fluctuations
and
waveform
distortion.
Helps
to
even
further
reduce
total
business
costs.
Powerful
Tools
for
Distortion
and
Fluctuation
Instantaneous
voltage
drop,
instantaneous
voltage
stop,
load
fluctuation,
and
input
voltage
waveform
distortion
vs.
stable
output.
Helps
guard
against
erroneous
machine
and
equipment
operation
and
suppresses
the
generation
of
faulty
products.
Easy
Testing
and
Measurements
Reduces
the
time
required
for
testing
on
production
and
inspection
lines
through
voltage
variables,
frequency
variables,
and
phase
mode
selectable
output.
Built-in
measurement
functions
eliminate
the
need
for
external
measuring
instruments.
Compact
and
Lightweight
Only
52%
(25kg)
the
weight
and
50%
the
size
of
previous
models.
No
need
for
large-scale
power
systems
or
foundation
work.
Reasonable
Plant
Introduction
Costs
Provides
2.8
times
the
normal
maximum
current
for
in
rush
current.
No
need
for
the
excess
power
and
redundant
equipment
previously
required
as
rush
countermeasures.
Reduces
running
costs.
Attains
76%
power
efficiency.
Environmental
power
supplies
that
suppress
futile
power
consumption
and
heat
generation,
contributing
to
corporate
environmental
measures.
Accommodates
Line
Refabrication
The
EPO2000X
(2kVA)
can
be
operated
several
ways;
including
boosting
rated
power
through
combined
operation
of
multiple
units,
individual
operation
of
separate
units,
and
phase
mode
selectable
output.
Supports
Line
Automation
Suitable
for
automation
and
unmanned
operation
of
production
lines
through
personal
computers.
Can
be
operated
over
corporate
LAN
networks
or
the
Internet
with
measuring
software.
*
1
Phase
mode
selectable
mode
allows
for
single
phase,
three
phase,
or
single
phase
three
wire
operation.
*
2
For
2kVA
units,
compare
with
our
4400
series.
A
power
supply
for
taking
precision
measurements
of
waiting
power
and
power
consumption
during
operation.
A
power
supply
for
taking
power
measurements
of
air
conditioning
devices
such
as
calorimeters.
A
power
supply
for
incorporating
measuring
and
testing
systems.
A
power
supply
for
stabilization
during
leakage
current
measurements.
A
power
supply
for
providing
specified
voltage
to
non-Japanese
lines.
A
Power
Supply
for
Radio
Wave
Dark
Rooms
and
Shield
Rooms
A
Machine
Power
Supply
for
Aging
Also:
*
1
*
2
*
1
a
reliable
power
line
environment
and
increases
reproducibility
of
test
data.
A
valuable
power
supply
is
one
that
provides
and
reduces
total
business
costs.
1
2kVA
Unit
The
EPO
series
is
a
line
of
epoch-making
power
supplies,
using
new
method
of
power
amplifier
unit.
They
provide
high
efficiency
(approx.
76%)
unimaginable
with
previous
products,
while
being
even
more
lightweight
and
compact.
These
epoch-making
AC/DC
power
supplies
feature
even
further
improvements
to
standard
features
such
as
the
flexibility,
high
output
stability,
and
powerful
supplies
of
electric
power
that
NF
power
supplies
are
known
for.
Each
and
every
function
is
aimed
at
providing
a
reliable
power
line
environment
and
of
total
business
cost
reductions.
The
more
you
use
them,
the
more
you'll
appreciate
the
power
of
the
EPO
series.
M
style
cabinet
L
style
cabinet
To
manufacture
reliable
products,
you
need
a
reliable
power
line
environment.
The
EPO
series
allows
for
manufacture
and
measuring
operations
free
of
voltage
fluctuation
factors,
*
CVCF
:
Constant
Voltage
Constant
Frequency
*
VVVF
:
Variable
Voltage
Variable
Frequency
A
Power
Supply
for
Motor-Driven
Devices
like
Vacuum
Cleaners
and
Air
Conditioners
APPLICATIONS
As
a
CVCF*
Power
Supply
for
Production
and
Inspection
Lines
Variable
Voltage
Transformer
and
Motor
Generator
Substitution.
Or
as
a
VVVF*
Power
Supply.

3. 4
The
EPO
series
improves
a
voltage
of
a
various
power
line
environment.
These
products
offer
even
further
improved
quality
and
yield
rate
of
an
industrial
products
by
increasing
withstanding
level
of
a
discontinuance,
a
distortion
and
an
instantaneous
voltage
drop
of
line
voltage.
Stabilization
and
Improvement
of
Waveform
Load
power
factor
is
guaranteed
at
0-1
(lead,
delay).
Provides
100%
rated
current
even
during
power
factor
0,
so
there's
no
problem
running
fluorescent
lights,
switching
regulators,
and
so
forth.
Output
Current
during
Low
Power
Factor
Load
These
power
supplies
conduct
their
own
failure
diagnoses
checks
during
power
start-up.
If
a
problem
is
detected
during
start-up,
a
warning
message
is
displayed
and
the
flow
of
electricity
to
main
electrical
parts
is
cut
off
to
prevent
the
problem
from
spreading.
(The
information
contained
in
these
messages
helps
facilitate
speedy
repairs
and
servicing.
Failure
Diagnosis
Function
Built-in
7
system
protection
function
safeguards
load
and
power
supply
from
such
problems
as
output
short
circuits,
over
current,
ambient
temperature
rises,
and
line
voltage
drops.
Momentarily
limits
output
in
the
case
of
temporary
over
current,
etc.
Automatically
recover
to
normal
output
after
the
problem
has
been
corrected.
Protection
Function
By
connecting
the
ten-key
pad
to
the
front
panel,
you
can
input
numeric
values
through
a
ten-key
pad
as
well
as
by
the
dial.
It
can
also
be
used
as
a
"Recall
Panel"
for
recalling
settings
programmed
in
memory,
making
it
convenient
for
inspection
operations
on
production
lines
and
so
forth.
External
Ten-Key
Input
*
*
*
*
*
*
*
Plus:
For
each
unit's
20
Arms
maximum
output
current,
the
unit
can
supply
up
to
2.8
times
57
Arms
(80
Apeak)
of
in
rush
current.
The
EPO
series
addresses
the
need
for
power
supplies
with
large
rated
output
current
for
handling
large
loads
of
in
rush
current,
such
as
during
motor
start-up.
With
the
EPO
series,
you
no
longer
need
to
put
extra
money
in
the
budget
just
for
system
startups
(to
increase
output
capacity).
In
Rush
Current
The
capacitor
input
type
rectifier
loads
used
by
many
electronic
devices
tend
to
consume
large
current
in
pulses,
as
shown
in
the
illustration
below.
For
this
reason,
you
need
an
AC
power
supply
capable
of
supplying
large
current
instantaneously.
The
EPO
series
can
put
out
up
to
four
times
the
rated
value
(rms)
maximum
peak
current.
Maximum
Output
Peak
Current
Instantaneous
Voltage
Drop
Instantaneous
Voltage
Stop
Input
Voltage
Waveform
Distortion
Load
Fluctuation
line
voltage
230V,
-30%,
100ms
drop
rated
load
instantaneous
voltage
stop:
0V,
1
wavelength
(20ms)
rated
load
input
voltage
waveform
distortion
rate
3.6%
rated
load
load
0%
R
100%
R
0%
*
Ten-key
pad
optional.
input
output
input
output
load
current
output
voltage
input
output
Provides
AC
output
which
is
synchronized
power
supply
line
frequency
by
line
synchronization
output
function.
Maximum
output
voltages
as
well
as
maximum
and
minimum
frequencies
can
be
preset
with
the
limiter
function.
Start
Phase
at
Output
ON
can
be
set
to
90
units
through
input
phase
setting
function.
Comes
in
handy
when
evaluating
in
rush
current
on
equipment
under
test.
Allows
for
ten
panel
memory
and
recall
panel
settings.
GPIB
and
RS-232
computer
interfaces
come
as
standard
features.
Equipped
with
key
lock
functions
which
allow
you
to
nullify
panel
key
operation.
Warning
buzzer
notifies
you
of
erroneous
operation
and
overload
protection
status.
3
Penetrating
Ideas
and
Convenient
Functions.
Our
objective
was
to
develop
reliable,
low
cost
power
line
environments.
The
EPO
series
is
divided
into
3
systems
according
to
phase
and
respond
to
a
variety
of
uses.
Boosting
Rated
Power
and
Phase
Mode
Selectable
Output
(single
phase/three
phase/single
phase
three
wire)
with
the
EPO2000X
.
The
Single
phase
2kVA
is
our
basic
unit.
It
can
be
used
as
a
master
or
a
booster.
You
can
link
up
to
three
units
of
the
same
model
and
the
EP
O2000X
allows
phas
e
mode
selectable
output,
making
it
easy
to
build
a
4kVA
single
phase/single
phase
three
wire
system
with
two
units
or
a
6kVA
single
phase/three
phase
system
with
three
units.
The
EPO2000X
is
a
flexible
unit
that
can
accommodate
the
refabrication
common
on
production
lines.
System
Line-up
Equipped
for
a
wide
range
of
output
voltages
and
output
frequencies.
Output
Voltage
and
Output
Frequency
Single
Phase
Systems
This
line-up
includes
2kVA-12kVA
systems.
The
4kVA
unit
comes
in
M-sized
(787.5mm
tall)
and
8kVA-12kVA
units
come
in
L-sized
(1,365.5mm
tall),
all
in
slim
cabinet
styles.
Phase
Mode
Selectable
Systems
This
line-up
includes
6kVA-36kVA
systems.
These
products
can
be
used
in
every
mode;
single
phase,
three
phase,
and
single
phase
three
wire.
They
come
loaded
with
functions
not
to
missed
by
those
who
want
to
use
them
in
various
ways
as
a
single
power
supply.
Each
system
is
housed
in
a
sleek,
well-organized
cabinet.
Model
Name
Output
Capacity
Configurations
Phase
Mode
Selectable
(single
phase
/
three
phase
/
single
phase
three
wire)
EPO2000X
EPO2000S
EPO4000S
EPO8000S
EPO10000S
EPO12000S
EPO6000M
EPO12000M
EPO18000M
EPO24000M
EPO36000M
2kVA
4kVA
8kVA
10kVA
12kVA
6kVA
12kVA
18kVA
24kVA
36kVA
2kVA
Unit
M
Style
Cabinet
L
Style
Cabinet
L
Style
Cabinet
L
Style
Cabinet
M
Style
Cabinet
L
Style
Cabinet
M
Style
Cabinet
3
Sets
L
Style
Cabinet
2
Sets
L
Style
Cabinet
3
Sets
*Up
to
3
units
of
the
same
type
can
be
used
together
(3
single
phase
2kVA
sets,
one
single
phase
4kVA
set
+1
single
phase
2kVA
set,
1
single
phase/three
phase
6kVA
set).
2kVA
2kVA
Unit
Phase
Mode
Selectable
System
(single
phase
/
three
phase
/
single
phase
three
wire)
Single
Phase
System
*
Dimensions
are
as
follows.
Dimensions
in
parentheses
include
protruding
parts.
2kVA
Unit
:
448W
176
(191)H
651
(685)Dmm
M
Style
Cabinet
:
448W
706
(787.5)H
746
(797.5)Dmm
L
Style
Cabinet
:
448W
1284
(1365.5)H
746
(797.5)Dmm
Only
52%
(25kg)
the
weight
and
50%
the
size
of
previous
models*.
Compact
and
Lightweight
*
For
2kVA
units,
compare
with
our
4400
series.
Achieves
76%
power
efficiency.
Plus,
we've
reduced
input
current
to
a
mere
14A
(at
200V)
and
even
further
reduced
harmonics
current.
Suppresses
futile
power
consumption
and
heat
generation,
and
contributes
to
business
cost
reductions.
High
Efficiency
with
Low
Input
Current
*The
photograph
is
of
the
EPO2000X
(2kVA).
All
indicators
on
the
display
panel
have
been
illuminated
for
the
purpose
of
illustration.
This
would
not
occur
during
normal
operation.
Output
Voltage
Range
100V
Range:
0V-150.0V
200V
Range:
0V-300.0V
0.1V
0.1V
5.0Hz-550.0Hz
0.1Hz
Resolution
Output
Frequency
Range
Resolution
*In
three
phase
and
single
phase
three
wire
modes,
settings
can
be
made
by
phase
voltage
or
line
voltage
(resolution
0.2V).
DC
Output!
Permits
0V-
+424V
output
voltage
(0.1V
resolution),
+9A
maximum
current
(at
2kVA),
and
900VA
maximum
power
(at
2kVA)
DC
output.
A
single
unit
can
be
used
as
an
AC
power
supply
or
as
a
DC
power
supply.
Appropriate
for
DC/DC
converter
testing.
These
products
can
conduct
their
own
measurements
of
load
voltage,
load
power
current,
power
consumption,
load
power
factor,
and
so
forth.
Plus,
the
"Peak
Current
Holding"
function
makes
it
easy
to
measure
maximum
values
of
in
rush
current.
Measurement
Functions
Measurements
AC
DC
voltage
(rms,
peak),
current
(rms,
peak),
effective
power,
voltampere,
power
factor,
peak
current
holding
voltage,
current,
electrical
power,
peak
current
holding
*
Phase
voltage
and
line
voltage
can
be
displayed
in
three
phase
mode
and
single
phase
three
wire
mode.

4. 6
Phase
Mode
Selectable
System
10kVA
12kVA
6kVA
12kVA
18kVA
24kVA
36kVA
45A
54A
27A
22.5A
27A
13.5A
6345W
7614W
3807W
54A
81A
90A
27A
40.5A
45A
7614W
11421W
12690W
90A
45A
12690W
100A/50A
120A/60A
60A/30A
20A/10A
20A/10A
120A/60A
180A/90A
200A/100A
200A/100A
40A/20A
60A/30A
80A/40A
120A/60A
60A/30A
80A/40A
120A/60A
180A/90A
min.
2MΩ
min.
1.6MΩ
min.
3.3MΩ
min.
1.6MΩ
min.
3.3MΩ
min.
1.6MΩ
min.
1.6MΩ
approx.
160kg
approx.175kg
approx.
100kg
approx.
175kg
approx.
300kg
approx.
350kg
approx.525kg
phase
input
(opt.
at
order))
170V-230V.
48Hz-62Hz
three
phase
max.
49A
max.
49A
max.
25A
max.
49A
max.
75A
max.
98A
max.
147A
max.
14.2kVA
max.
16.8kVA
max.
8.4kVA
max.
16.8kVA
max.
25.2kVA
max.
33.6kVA
max.
50.4kVA
500.0Hz:
1.0%
0.005%
0V-150.0V
(0.1V
resolution)
0V-300.0V
(0.1V
resolution)
single
phase/three
phase/single
phase
three
wire
3%
accuracy
2%,
peak
value:
20A/40A/100A/200A/400A/800A
range,
0.01A
resolution
(0.1A
in
the
200A/400A/800A
range)
with
accuracy
5%
interface,
external
ten-key
input,
key
lock
function,
and
warning
buzzer
With
phase
voltage
set
to
100V
in
the
100V
range
and
phase
voltage
set
to
200V
in
the
200V
range.
*
4
40A/20A
with
2
connected
units,
60A/30A
with
3
connected
units.
*
5
For
capacitor
input
type
rectifier
load.
measuring
range
of
peak
value
and
effective
power
is
45
to
65Hz.
*
9
Power
input
line
vs.
chassis,
Power
input
line
vs.
output
line,
Output
line
vs.
chassis.
*
10
Values
for
each
cabinet.
Output
box,
Output
suspension
cable,
Booster
control
cable,
Operation
Manual
(Power
cable
optional)
*
10
*
10
*
10
*
1
*
1
Phase
Mode
Selectable
Single
Phase
System
Output
(AC
mode)
Output
(DC
mode)
Output
Voltage
Stability
Functions
Environment
and
Weight
Visual
Aspects
Input
Rated
Power
2kVA
4kVA
8kVA
Phase
Maximum
Current
Maximum
In
Rush
Current
(rms,
short
term)
single
phase
100V/200V
three
phase
100V/200V
(20A/10A
with
3
connected
units)
(20A/10A
with
2
connected
units)
2.8
times
maximum
current
(rms)
4
times
maximum
current
(rms)
single
phase
three
wire
100V/200V
20A/10A
with
1
unit
20A/10A
40A/20A
80A/40A
9A
18A
36A
4.5A
9A
18A
1.3kW
2538W
5076W
Setting
Voltage
Range
Load
Power
Factor
Distortion
Factor
0-1
(lead
phase
or
delay
phase)
under
0.5%
Start
Phase
at
Output
ON
Frequency
Line
Synchronization
Setting
Voltage
Range
100V
0V-212.0V
(0.1V
resolution)
200V
0V-424.0V
(0.1V
resolution)
Maximum
Current
Maximum
Output
Power
Against
Load
Current
Fluctuation
DC,
40.0Hz-120.0Hz:
0.1%,
120.1Hz-500.0Hz:
0.5%
Against
Input
Line
Voltage
Fluctuation
0.2%
Against
Ambient
Temperature
Change
Voltage,
Frequency,
and
Phase
Efficiency
Withstand
Voltage
Isolation
Resistance
(at
500V
DC)
Ambient
Temperature/Humidity
Weight
AC
1.5kV,
50Hz/60Hz,
1
minute
min.
10MΩ
min.
5MΩ
min.
2.5MΩ
operation:
0
C-40
C
/
10%-90%
RH,
storage:
-10
C-50
C
/
10%-90%
RH
(no
dew
condition)
approx.
25kg
approx.
25kg
approx.
85kg
approx.
140kg
Input
Current
Power
Consumption
170V-250V.
48Hz-62Hz
single
phase
170V-230V.
48Hz-62Hz
three
phase
(single
76%
(typ.)
during
200V
input
(three
phase
input
is
line
voltage)
max.
14A
max.
14A
max.
25A
max.
37A
max.
2.8kVA
max.
2.8kVA
max.
6.1kVA
max.
11.4kVA
100ppm/
C
(typ.)
DC,
40.0Hz-120.0Hz:
0.5%,
120.0Hz-
100V
9A
(18A
with
2
connected
units,
27A
with
3
connected
units)
200V
4.5A
(9A
with
2
connected
units,
13.5A
with
3
connected
units)
1.3kW
(2.6kW
with
2
units,
3.9kW
with
3
units)
5.0Hz-550.0Hz
(0.1Hz
resolution),
setting
accuracy:
setting
values
0.01%,
stability:
setting
values
synchronized
AC
output
to
power
line
frequency
0
/
90
/
180
/
270
selectable
Maximum
Peak
Current
(peak,
continuous)
100V
0V-150.0V
(0.1V
resolution)
0V-150.0V
(0.1V
resolution)
200V
0V-300.0V
(0.1V
resolution)
0V-300.0V
(0.1V
resolution)
single
phase
single
phase/three
phase/single
phase
three
wire
(three
phase
attainable
by
connecting
3
units
of
the
same
model,
single
phase
three
wire
attainable
by
connecting
2
units
of
the
same
model)
2kVA
(4kVA
single
phase
or
single
phase
three
wire
possible
by
connecting
2
units
of
the
same
model,
6kVA
single
phase
or
three
phase
by
connecting
3
units)
Measurement
Function
voltage
Current
Effective
Power
Apparent
and
Power
Factor
Peak
Current
Holding
Functions
Others
rms
:
170V/340V
range,
0.1V
resolution,
accuracy
1%,
peak
value:
240V/480V
range,
resolution
0.1V,
accuracy
rms
:
14A/28A/70A/140A/280A/560A
range,
0.01A
resolution
(0.1A
in
the
140A/280A/560A
range)
with
2.2kW/22kW
range,
resolution
of
0.01kW
at
2.2kW
and
0.1kW
at
22kW,
with
accuracy
3%
calculated
from
voltage,
current,
and
power
measurement
results
and
displayed
20A/40A/100A/200A/400A
range,
resolution
0.1A
(1A
for
200A/400A),
with
accuracy
5%
failure
diagnosis
function,
protection
function,
memory
function,
preset
function,
limiter
function,
GPIB/RS-232
L
style
cabinet
M
style
cabinet
2kVA
unit
*
Measurements
are
in
millimeters.
Dimensions
in
parentheses
include
protruding
parts.
Reference
Accessories
*
1
Three
phase
or
single
phase
three
wire
when
setting
phase.
Line
voltage
settings
are
also
possible
(0.2V
resolution).
*
2
Output
current
is
reduced
when
output
frequency
is
under
40Hz.
*
3
*
6
100V
operation
is
possible
with
the
EPO2000X
and
EPO2000S,
but
output
is
limited
to
approx.
800VA.
*
7
at
200V
power
input.
*
8
Effective
measuring
range
is
40
to
500Hz,
and
effective
*
11
Excluding
accessories
and
options.
Remarks:output
off
set
voltage
is
100mV(typ.)
Power
cable,
Slotted
screwdriver
for
input-output
wiring,
Operation
Manual
Operation
Manual
(Power
cable
optional)
*
2
*
3
*
3
*
5
*
7
*
9
*
8
*
11
*
9
*
1
*
1
*
4
*
6
5

5. Printed in Japan; June 2009
G09T-P48-4A1
Items Reference
Remote Sensing (single phase)
Remote Sensing
(phase mode selectable)
Compensates for output cable voltage drops.
Smooth, rapid response.
Permits observation of a single phase of output
voltage or output current through an oscilloscope.
Makes it possible to input numeric values and
recall contents of memory externally.
5m cable (3m cable included with EPO2000X and
EPO2000S)
Supplies input power (single phase 200V) to
three units of EPO2000X or EPO2000S.
Parallel connection for output from 2-3 EPO2000X units.
Waveform Monitor Output
Simple Operation Ten-Key Pad
Power Input Cable
For linking two or three EPO2000Xs
System Cable
Power Inlet Unit (4481)
Outlet Unit (4482)
*1 Can be used with all models except the EPO2000X and EPO2000S.
Available only for setting more than 50V.
*2 Can be used with all models.
OPTIONS
Models Name Reference
ES Series
Appropriate simulation power supplies for all kinds of standards testing including low frequency
immunity testing. 2kVA-20kVA single phase, 6kVA-60kVA three phase.
Appropriate for powerful, high precision, low cost production lines.
Three models: 410VA, 620VA, and 1,250VA.
Applicable to a wide range of uses including power line environment testing. DC-20kHz, ±200V.
A maximum 10kVA single phase and maximum 30kVA three phase are possible using a booster.
EPX Series
4500 Series
Programmable AC/DC Power Source
EC1000S
Desktop-size 1kVA , small and light, and affordable. Programmable outputs such as
instantaneous interruption, voltage sweep, and voltage variation patterns.
Programmable AC/DC Power Source
AC Power Supply
Precision Power Amplifier
Clean AC power supply suitable for supplying power during EMI measurements.
2kVA-10kVA single phase.
EA System AC Power Supply
RELATED PRODUCTS
WEB SITE
Simple operation ten-key pad
Power inlet unit 4481 (for 6kVA) Outlet unit 4482 (for 6kVA)
Following home page supplies our latest products information.
Please access our home page.
URL : http://www.nfcorp.co.jp/english/index.html
*2
*1
*1
*1
REPRESENTATIVE
Head Office
6-3-20 Tsunashima Higashi, Kohoku-ku, Yokohama 223-8508, Japan
Phone : +81-45-545-8128 Fax : +81-45-545-8187
NF Technology (Shanghai) Co., LTD
Room22G, Huamin Empire Plaza, No.726 Yan An West Road, Changning District,
Shanghai 200050, China
Phone : +86-21-52238-2338 Fax : +86-21-6415-6576
http://www.nfcorp.co.jp/english/index.html
Nihon Denkei