... produce the pipes,from the material picking,rolling,striping,pipe making,polishing,and package all these procession.Brand NameZaiHuiCertificationISO ... ,316L.Surface treatment400grit,500grit,600grit,Mirror,bright,light,shiny.Pipe Elbow Outer Diameter12.7 to 159mm.Thickness0.25 to ... tube is sleeved in plastic bag individually, and then several tubes are packed to be bundle.4. Total amount(products ...