SMLS Carbon Steel Pipe 1.Size:1/2" to72" 2.Thickness:2.0 to ... 3.Standards:ASTM A106/53 B, API 5L GR SMLS Carbon Steel Pipe 1) Standard: ASTM A106, A53, API 5L GR. B. ... ) Packing in bundles2) Surface: black painting ,varnish3) Ends: Beveled or square cut, Plastic capped. Inspection & Certification1) Certification: ISO, API, ASTM, ... SGS, BV, Lloyds etc.Best prices and good quality! SMLS Carbon Steel Pipe