... induction heating 4.Heat treatment uniform,fast Covey cement pipe wall heat treatment equipmentHeat treatment (quench hardening):1, ... tools. Such as pliers, wrenches, hammers, axes, screwdrivers, scissors (gardening shears) and so the quenching;2, various automotive, ... protection50 degreesHeat treatment power supply Full set concret pipe heat treatment inner wall equipment Sincerely provide service ...