... /ASTM A106 GR.B Carbon Steel Pipe Standard:API 5L,ASTM A106/A53, Size:OD 1/4"-48", WT 1.24mm-60 ... ,A179,A192,Q195,Q235,Q215 Size 1/4" to 48"(OD 13.7--1219MM) Lenght2-20m random or fixed.such as ... ,XS,STD,XXS) Technics Cold drawn,cold rolled,heat extrusion,ERW,SAW Package Typ caps on two end of every pipe outer; hexagonal shape ...