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 by UL, CSA, and TUV systems.Our products:1. PTC self-control heater pellet can be applied in: dryer, air heater, air condition heater, mosquito killer, car heater, humidifier, de-humidifier, heating-plate, massager, physical therapy machine, hot glue-gun, hair crimper, hair straightener, coffee/milk warmer, and water boiler.2. PTC heater with insulator film can be applied in: hair straightener, hair crimper, wax melting heater, vapor generator, humidifier, water boiler, liquid warmer, coffee warmer, polymer press-coating heater, hot glue gun, chocolate extruder, shoe dryer, hand/foot warmer, massager, and physical therapy heater.3. PTC heater with shell can be applied in: hair straightener, hair crimper, wax melting heater, vapor generator, humidifier, water boiler, liquid warmer, coffee warmer, polymer press-coating heater, hot glue gun, chocolate extruder, shoe dryer, hand/foot warmer, massager, and physical therapy heater.4. Ceramic heating plate can be applied in: hair straightener, hair crimper, and other appliances.5. Air heater can be applied in: room heater, bathroom heater, air condition heater, drying tank heater, clothes dryer, and hand dryer.Key word: PTC, PTC heater, PTC ceramic, electric heater, water heater, self-controlling heater, constant temperature heater, ceramic heater, heating element, air heater, hair straightener plate, wave plate for hair, insulated PTC heater, aluminum shell heater, PTC thermistor, infrared heater.