... high temperature, which is mainly applicable to the smelting of iron, steel, copper, aluminum, zinc as well as various noble metals ... deck and guide rail.5. Quench for various hardware metal parts and machined parts, such as shaft, gear (chain wheel), cam, chuck ... fitting, precision mold fitting, hardware handle, eggbeater, alloy steel and steel, steel and copper as well as copper and copper.3. Compound ...