... 180 T oxygen converter, 1550/250 mm slab CCM,18X29 ball mill, bell type annealing furnace, 1250mm cantilever straightener etc rivet ... as roll, engine seat, frame, box body, gear blank, sleeves, slide way, valve body, valve seat, pulley, connection rod, etc. ... forgings with the material of carbon structure steel, tool steel, ball bearing steel, spring steel and various alloy steel, etc. Main equipments ...