... /T3091-2001,GB/T3092-1993,GB/T9711.1-1997 wall thickness:12-150mm OD:6-1422mm length:6-12m ... 1) Commodity:stainless steel thick wall tubeSeamless Steel Pipe, Steel pipe2) Process method: Cold Drawn ... -02, GB13269-916) Size: A) NPS: 1/8" to 24" X Schedule: 5/5S, 10/10S, 20/20S, 40/40S ... beautiful future. We believe tomorrow will be better. thick wall steel tube for chemical Industry