HLH Prototypes offers custom CNC milling and plastic machining services from their ISO-certified facilities in Shenzhen, China. They have high-precision 3, 4, and 5-axis CNC machines to handle a variety of jobs. HLH Prototypes specializes in machining parts from various plastics and metals with fast, precise, and cost-effective CNC machining. They work closely with clients to determine the best design and manufacturing solutions for parts.