Features: 1) Diameters: 6mm - 14mm 2) Wall thickness: 0.5mm - 0.7mm 3) Materials: 304, 304L, 316L 4) With maximum length of 1,000m and ordinary length of 400m - 600m 5) They all go through the pressure test 6) They can be used in liquid transportation tubes for drinks, beers and foodstuff, as well as other stainless steel tube accessories of mechanical equipment