This document provides specifications for three types of subplates for hydraulic valves with a size of 6 and a maximum operating pressure of 350 bar. It includes the dimensions and part numbers for subplates of types G341/01, G342/01, and G502/01, which have port sizes of G1/4, G3/8, and G1/2, respectively. Installation notes specify that the length and tightening torque of mounting screws depends on the valve and sandwich plate used.