... Products Quality: Each product is tested before packing, quality guaranteed; Applications: for soft copper, aluminum, soft steel tubes expanding2. About factory Experience ... .Easy to operate, safe and depandable.Quality guaranteed.CT-100AL(for inch): 3/8", 1/2", 5/8", 3/4", 7 ... -1/2", 1-5/8" O.D. Tubing.CT-100ML(for metric): 10, 12, 16, 19, 22, 25, 28, 32, 35 ...