... For aluminum alloy die-casting pieces, piston, aluminum etc light alloy parts quenching, annealing, aging of heat treatment with 1) USES ... hammers, wear-resisting lining etc all kinds of mechanical parts of quenching and tempering, annealing, aging of heat treatment ... For aluminum alloy die-casting pieces, piston, aluminum etc light alloy parts quenching, annealing, aging of heat treatment with;Whole ...