... :201, 304, 304L, 321, 316L, 310S ASTM-A249 stainless steel welded pipe1. Type: seamless steel pipe/ welded steel pipe2. Usage: industrial usage, decorative usage3. Standard: A249 ... , A7894. Grade: TP201, TP304, TP304L, TP321, TP316/TP316L, TP310Sstainless steel pipe, stainless steel welded pipe, stainless steel decorative pipe5. Thickness: 0.25mm-20mm6. Outer diameter: 8mm ...