... ST3...Grade: 10#, 20#, 45#, A53(A,B), A106(B,C), API ...Thickness: 0.5 - 25 mmSection Shape: RoundOuter Diameter: ... .woven cloth with 7 slats4.according to the requirements of customersUsageMechanical&manufacture,Steel strcuture,Shipbuilding,Bridging,Automobile chassisMain marketMiddle ... members, among whom managers with senior title and technicians amount to 41. We are an enterprise specialized in the ...