... for various automobile and motorcycle fittings, such as crankshaft, connection rod, pinton pin, chain wheel, aluminum wheel, valve, rock ... size mold, mold accessory and inner hole of mold Welding (brazes welding, silver soldering and brazing) It’s mainly aims ... milling cutter, reamer, planning tool and solid center bit.2.Welding of various hardware mechanical gadgets, silver soldering and brazing of ...