... Description Design and manufacture all kinds of special steel pipe,LSAW ERW Welded Steel Pipe,JCOE technology black steel pipes.API 5L Gr ... ,B,X42,X46,X52,X56,X60,X65,X70,PSL1/2 pipe.length equal or less than 14m,thickness is equal or ... lesser than 2 inch etc. Beveled Edges,Coating,Cap.1.ERW ASTM A106A53,1/2-24 inch,21.3-609.6mm2 ... .ERW BS1387,1/2-12 inch,21.3-323.8mm3.GB ...