... PSL2 ,CE and ISO certification. SSAW Spiral Welded Steel Pipe: 1.Grade: GR.A,GR.B,X42,X52, ... ssawERW Spiral Welded Steel Pipe/ERW Pipe/Welded Tube: Product NameERW steel pipe/Welded pipe/steel pipe/carbon steel pipe SizeOD1/2-48”WT0 ... ,accessorize and constructionEnds1) Plain2) Beveled3) ThreadEnd Productor1) Plastic pipe cap2) Iron protectorSurface treatment1) Bared2) Black Painted(varnish coating ...