... .3mm; Wall thickness:2-14mm Carbon Seamless steel pipe DIN 17175 ST35.8/ST45.8 Certificate:ISO9001-2000,PED,API 5L/5CT,TS16949 ... ,DNV,KR,LR Seamless steel tubes/pipes Description Cold ... ,T5, T11, T12, T22, St35.8, St45.8, STP G370,STB 340 1) Cold drawn seamless steel tubes/pipes2) Certificate:ISO9001:2000,PED ...