Tiancheng Thermistors Co., Ltd. is a professional manufacturer of PTC heating element and heating assembled unit. Our company has a powerful R&D team, and can provide various kinds of PTC heaters in top quality at low prices. Our factory is located in Dongguan, China, near to Hong Kong. We have rich manpower; also we have got rich experience in manufacturing PTC. Our company has got ISO9001:2000 system certificate, and has been certificated by TUV system. Many of our products are certified ...