... 4.Length:5.8m,6m,roll,or as required Air Condition tube/Water Copper PipeDescriptionCopper pipe, copper tubingStandardASTMB280,JIS H3300 ... and smooth on surface. Besides, they are of good heat conductibility. Furthermore, they are reliable in quality. Thus, ... they are widely used for heat exchangers, radiators, coolers, electro-heat-up pipe, air conditioner and refrigerators. The straight pipes ...