... standard part, fastener, fabricated mechanical part, bronze lock, rivet, steel pin and pin.2. Hot fitting refers to the connection ... , such as diamond tool, abrasive tool, drilling tool, alloy saw blade, hard alloy cutter, milling cutter, reamer, planning tool ... fitting, precision mold fitting, hardware handle, eggbeater, alloy steel and steel, steel and copper as well as copper and copper.3. Compound ...