FORTO TUBE(China)--Specialized Manufacturer for Stainless Steel Mechanical/Ornamental Tubing since 2005. (1) Welding Technique: TIG Welded; (2) Standard: ASTM A554, JIS G3446, DIN 17455 (3) Grades: 304/304L/316/316L; (4) Shapes: Round/Square/Rectangular/Spiral/Oval ; (5) Wall Thickness: 0.4--3.0(mm); (6) Outside Diameter(mm): Rounds 6-168; Squares 8x8-120x120; Rectangles 5x20-60x120 ; (7) Length: Standard in 6m/Custom Cut; (8) Finish: 180/320/400/600 & 800 grit;