... competitive price and good quality Name: BS 1387 pre-galvanized steel pipe Material: Q195, Q235, Q215, 10#, 20#, A53-A369, ST35-ST52Technique ... , tee, flange and some other pipe fittings. Secondary treatment: cutting, drilling, stamping, etc.Welded line type:longitudinalInspection: Hydraulic Testing, Eddy Current , Infrared ...