1.Standard: bs1387, astm a53, astm a106 2.Material: q345, q235, a53grb, a53gra, a106 grb, a106grc. 3.Od:21.3-219.1mm 4.Wt:1.5-7mm 5.End:pe, be, plastic caps, coupling, threaded. 6.Application: structural, oil, gas. 7.Main market: America, Asia, Europe. Od:21.3-219.1mm Wt:1.5-7mm