stainless steel seamless pipe 1.Grade:300 Series 2.Cerfitication:ISO, DNV, PED, GOST ... ,DIN,GB,GOST,EN ZHEJIANG PENGYE is professional manufacture of stainless steel seamless pipe and tube in China. 1.SIZE: OD from 6mm ... mainly purchases raw material from Baosteel Group Shanghai No. 5 Steel Factory, Huzhou Jiuli Group, Taiwan, etc.The pipes and tubes ...