Detailed Product Description 1) Commodity: seamless and welded austenitic stainless steel pipes 2) Process method: cold drawn / cold pilgered 3) Surface finish: annealed / cold pilgered4) Material: TP304, TP304L, TP310 / S, TP316L, TP316 / 316L dual grade, TP317L,TP321, TP347 5) Standards: ASTM (ASME) SA / A312 / M 6) Size: a) NPS: 1/8" to 10" b) Schedule: 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, ...