Hang jing of suzhou has accumulated experience in the development of multi-year crystallized integrated circuits, specializing in the development, design, production, marketing and servicing of stone-engine frequency control elements, establishing complete product lines, quartz crystals, crystallized oscillators, temperature compensations and thermostats, etc., with a robust supply chain system to provide the full range of services to clients. Full and modern iso 9001 and gjb 9001c standard management model。