... welding line of work pieces is very solid and full after welding.9. Suitable for heating ... leaf springs, fork, valve, rocker, ball stud and other auto parts quenching.3. All kinds of ... All kinds of pliers, knives, scissors, axes, hammers and other hand tools quenchingForging categories1. All kinds of bolt, ... drill head, drill pipe, coal drill bits, drill bits andother mine parts of the wind welding IGBT ...