... welding line of work pieces is very solid and full after welding.9. Suitable for heating medium ... leaf springs, fork, valve, rocker, ball stud and other auto parts quenching.3. All kinds of engine ... All kinds of pliers, knives, scissors, axes, hammers and other hand tools quenchingForging categories1. All kinds of bolt, ... mine parts of the wind welding IGBT induction heating rod forging machine 120KW