product:steel pipe Standard:GB/T8163 Chinese national standard Application:General seamless ... can paint mark on the steel pipeapplicationsOil, natural gas, chemical industry, power plants, food manufacturing, construction, manufacture ship, paper, ... 450C) etcSteel gradeQ195,Q195L,Q235 and so on PackingPlastic steel pipe cap ,plastic bag, steel strip bundledCertificateAPI, CCS, ISO9001:2000Delivery ...