Copper Pipe For Air Conditioner. 1. O.D.: 6.35mm-104.78mm 2. W.T.: 0.40mm-3mm 3. Length: 5m, 5.5m, 5.8m, 6m. 1.Copper Pipe For Air Conditioner.2. Copper Pipe : Copper Pancake Pipe, Copper Straight Pipe.3. Outside Diameter: 6.35mm-104.78mm4. Length: 5.8m,6m, 15m,18m, 30m.5. Standard: ASTM B280, JIS H3300, EN12735, AS1571.6. Package: Carton Box, Iron Frame.