... )Round pipe:Dia.20,Dia.22.2,Dia.25.4,Dia.32,Dia.38,Dia.44.5,Dia.48,Dia.50.8,Dia.57,Dia.63.5,Dia.76,Dia.83,Dia.89Square pipe ... from 0.85mm to 3mm2.Use:1.Stockade tube 2.The gardening uses the tube 3.Lives at home the traveling thing ... .The automobile, the electric car, the baby carriage use the tube 5.The electrician (conforms to the American UL standard) with ...