... 22mm 3.High quality and exciting price ASTM A53 ERW steel pipe1.Competitive in price2.Superior in quality3.Strong in ... 3mm—630mmWall thickness1.8mm—22mmLength0.3—12mSteel GradeAPI 5L:Gr B,X42,X46,X56,X60,X65,X70ASTMA53:GrA,GrBEN:S275, ... Singapore, USA, Italy, Korea, Indonesia, etc Manufacturing Technological Process ERW Steel Pipe PictureCertificate:Our main customer: Our customersWe always put the ...