STGroup Precise Hardware Manufactory Co., Ltd., located in Dong Guan City has specialized in producing precise hardware parts, particularly low-expansion alloy precision parts used in the optical communication field. We have a great deal of experience in producing Kovar / Invar communication parts, and are able to produce optical Kovar / Invar single hole, double-hole, multi-hole and 0.20mm ultra-small hole accessories while also producing precise parts for aerospace, medical machine, bearing and electrics. The materials used include resin, Teflon, nylon, titanium alloy and copper alloy, nickel-silver alloy etc. We have TSUGAMI, STAR, and MIYANO, the advanced CNC precision automatic lathe; also have equipped with 2.5D projector, microscope and other inspection instruments which guarantee product quality to meet the high standard requirements of customers. We have always been committed to becoming a reliable global partner of optic communications industry, continuously providing our customers with fine quality and better customer service. We commit ourselves to meet client’s research and development requirements so as to build a long term, mutual-benefit, stable and trustworthy co-operation.