... 4,strict quality control Specification: Product: good quality forging ring manufactory Material: carbon steel, alloy,stainless steelProcess:open die forgingInspection: UT- testedQuality:API ... the advanced paymentDeqian Hangzhong Forging Factory, start producing forging product since 1958, mainly offer forging shaft, rotor, roll, gear,ring, cylinder, flange, rudder stock ...