... machine tool forging as: shaft sleeve, crank shaft, gear ring, screw set, bolts and nuts, We are professional manufacturer of oil equipment ... used in boiler pressure vessel, oil industry, chemical field, shipbuilding, pharmacy, metallurgy, water conservation, power plant ... Paul JingSales managerZhangqiu Baohua Forging Co.,LtdTel: 0086-13853179742Fax: 0086-531-83861079 Machine tool forging parts(blank& ...