... equipmentHeat treatment (quench hardening):1, all kinds of hardware tools, hand tools. Such as pliers, wrenches, hammers, axes, screwdrivers, ... , a small shaft, fork, etc. quenching;3, various power tools. Such as gears, axes;4, the machine tool industry category ... gear quenching Φ50 rod heatedTemperature protection50 degreesHeat treatment power supply Full set concret pipe heat treatment inner wall ...