... , refrigerating copper fitting, lamp decoration fitting, precision mold fitting, hardware handle, eggbeater, alloy steel and steel, steel and copper as ... . Quench for machine tool: lathe deck and guide rail. Quench for various hardware metal parts and machined parts, such as shaft, ... machine tools, such as lathe deck and guide rail.5. Quench for various hardware metal parts and machined parts, such as ...