... , hydraulic, pneumatic components, air distribution and other mechanical metal parts Motorcycle surface, bore, in part or in whole quenching, ... Auto car-components, Motorcar-components, etc. machine metals parts, the Quenching for surface, of inside bore or part or for ... Diamond saw-toothed weld, Saw tooth weld, grinding machine tool welds, drill the machine tool welds blade tool welds .The other ...