... ,strict quality control Specification: Product: good quality forging ring manufactory Material: carbon steel, alloy,stainless steelProcess:open ... testedQuality:API & ISOPort:Shanghai/NingboPayment:TT & L/C are both okDelivery:30-40days after receiving the advanced paymentDeqian ... 1958, mainly offer forging shaft, rotor, roll, gear,ring, cylinder, flange, rudder stock, intermediate shaft, motor shaft ...