... pipe 2.Square pipe 3.Rectangular pipe 4.Oval pipe 5.Welded pipe 1.Our products are as following:(Unit:mm)Round pipe ... 8,Dia.57,Dia.63.5,Dia.76,Dia.83,Dia.89Square pipe:16X16,19X19,20X20,22. ... 45X45,50X50,60X60,70X70and other rectangular or oval pipe of the same specifications. Thickness from 0.85mm to ... electric car, the baby carriage use the tube 5.The electrician (conforms to the American UL standard ...