ChangLongsheng Mach,& Elec. Tech Co., LTD Was established in 2000, the headquarters is located in 2F, 8 Building, Nanshui Industrial Area, Westside Yanshan Road, Shekou Nanshan District Shenzhen.China. building area more than 1200 square meters, the existing staff of 120people, which more than 20 R&D employees and  10 senior industrial engineers. We have prefect industrial process in the Manufacturing and High-caliber employee. the developers of more than twenty, senior technician five, high skills technicians more than 10, with exquisite processing technology, high quality production staff.
Has produced5.8 million kinds of outside heating type heating coil, heat ring, high-temperature heating cycle; 280, 000 kinds of electronic temperature controller (ETS); 120000 pcs all kinds of adjustable potentiometers, precision lines around the lap, multi-turn potentiometer; more than 55, 000 sets of all kinds of bucket rack, bottle storage shelf, bottled water rack; and according to customer's specific needs, the first time to develop proofing.

Our main products are: Mica band heater series; high temperature ceramic band heater series; AC110V, AC220V, DC48V temperature controller (ETS) series; adjustable single-turn potentiometer RA24Y, adjustable wire wound 3590 Series multi-turn potentiometer ; indicator board series; bottled water rack, storage rack bucket, bottle storage rack series.