1.Production of various National standard, American UL standard, normal standard metal hose, conduits 2.Different specification from3/8" to 4" widely applied in protecting various wires, cables and pipelines and the metal joints, 3.Granted with ISO9001:2000 quality system certification and SGS environmental protection certification. Description: Galvanized steel or aluminum, corrsion resistant,squarelock type or interlock typeHigh flexiblility, impact resistantSuitable for the a variety of wiring and cable Packing: cartons and plastic bags (or customers' select) Cat No.Trade SizeAcceptable Internal Diameter Acceptable External Diameter Bending Radius(mm)Length of RollMinMinMinMeterJSU-013 3/8’’9.5015.6051100JSU-016 1/2’’15.8023.4076100JSU-021 3/4’’20.6028.10101100JSU-026 1’’25.4035.10127100JSU-0341-1/4’’31.8041.4016550JSU-0401-1/2’’38.1049.5319050JSU-051 2’’50.8062.2325450JSU-0632-1/2’’63.5077.72317.525JSU-0783’’76.2090.4238125JSU-1014’’101.60115.8250825