... Qiancheng Steel-Pipe Co.,Ltd. ItemMaterialStandardSpecification(OD*WT)mmUsage Alloy pipe Cr5Mo 15CrMo12Cr1MoV P11/22 T91,P91,P9,T9 Wb36GB5310 ... 2-100The seamless steal pipesfeatures resistance to high presure,high/low temperature and corrosion ano is used inthe industries of ... boiled pipe10,20GB3087-199910-530*2-40Over-heat pipe for low and medium pressure boiler,boilling water pipe,locomotive somke ...