... ~ 4 times. 2.Highly intensive, compact structure 3.Argon arc welding Electric Heater Parts with Copper Flange Product DescriptionBy more ... chemical, food, machinery and other industries .Main Parameters Electric water heating element with flangeMaterial:SUS304,304L,316,316L,etcPower ... .Certificate: UL,CE approval 2.Great surface power3.Compact structure and easy to install4.Long life5.Safe and ...