... 20#, St37, St44, St52, ASTM A53, ASTM A106,x42-x70,L175-L55,etcStandardAPI 5L, API 5CT, ASTM A53, ASTM A252, EN10217, DIN 2458. ... on each bundle3) wrapped in waterproof paper4) sackcloth with several steel strips5) PVC SLEEVESurface treatmentLightly oiled, Hot ... Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.TestChemical Component Analysis, Mechanical ...