... cover type annealing furnace, 1250mm cantilever flattener, kinds of valve, flange, gear, serrated shaft, herringbone shaft, gear reducer, ... frame, box body, gear blank, sleeve products, skidway, valve body, valve seat, pulley, connecting rod and so on.Our forging ... and medium-frequency induction furnace for steel casting and copper casting. Our precision casting products are adopted silica sol process, ...