... :300 and 200 series 3. Shape:round, rectangular,square,fan shape ASTM A554 Decorative pipe(Welded Stainless Steel Pipe)1. Standard: ASTM ... . Material:300 and 200 series3. Shape:round, rectangular,square,fan shaped,etc.Decorative pipe4. Production machine: Slitting itemizing, TIG,plasma welder, high ...