Features: 1) Size: OD from 6mm to 89mm, Thickness from 1mm to 13mm, 6mm x 1mm to 89mm x 13mm2) High quality (passed ISO9001)3) Many kinds of purpose (construction,liquid pipes,mechanical elements)4) Very competitive price.5) Custom packing6) In accordance with inernational standards: ASTM A53, ASTM A106, DIN17175, DIN17100, JIS, SAE producing area:China payment:L/C at sight, T/T