... valve seat, pulley, connecting rod and so on.Our forging branch factory can work sleeve products, flange products, ring products, profiled ... ring, ø1000 flange and ø500 x 17000 shaft.Our casting branch factory has large, medium, small EAF (electric arc furnace) ... and kinds of smelting electric furnace in our heat treatment branch factory. In this case, quenching, annealing, tempering, hardening and ...