Cartridge Heater, Film Heater, Silicone Rubber Heater manufacturer / supplier in China, offering 48V 500W Industrial Electric Resistance Immersion Stainless Steel Tubular Heater Rod for Boiler, 3 Phase DC to AC AC to AC DC to DC Single Phase Industrial Solid State SSR Relay, 25da 40da 80da 100da DC to AC DC to DC Industrial 240V Solid State Relay SSR and so on.