... ,BS Material:ASTM API 3PE anticorrosive steel pipe with good quality :Certificate:ISO9001:2000,CE.Size: 1/2 ... and so on.Structure type: seamless pipe,straight steel pipe,square pipe,spiral pipe ,and so on.Deaign and manufacture ... professional manufacturer and exportor of flange,valve and pipe fitting.With the rich experience of making ... stainless steel API 3PE anticorrosive steel pipe with good quality