... seamless steel tubes OD:1/2"---24" WT:Sch10 --Sch160 Standard: GB ASTM DIN JIS EN Material: 16Mn A335 .12Cr1MoVG alloy seamless steel ... XXS5UsageBoiler user ,water transport,,building,machinery,traffic,aviation,oil devepment6OD TolleranceD<48.3mm,+-0.4mm/-0.79mm, ... Co., LtdCountry: ChinaCompany Address: A Dist.33,Steel Market,Fenghuang Industry Park,Dongchangfu Dist.,LiaochengMobile:0086-13326353000Tel ...