Electric Heating Element, Electric Heating Equipment, Cartridge Heater manufacturer / supplier in China, offering 30kw 40kw 50kw 60kw Explsoion-Proof Anti-Freeze Marine Heater with Temperature Controller, 60kw 80kw 100kw 120kw Explosion-Proof Inline Marine Oil Heater with Pump, 150kw 250kw 350kw High Temperature Electric Pipeline Heater for Air Nitrogen Heating and so on.