We BAOFENG STEEL GROUP CO.,LTD which is a professional manufacture in producing stainless steel seamless pipes / tubes in China. We have our own steel-making, punching, process, testing workshop, so that our quality and price are in a competitive level. The detail of our products as below: *Material grade: 304,304L, 316,316L, 321, 321H, 310S, and your special requirement *Dimensions: O.D (1/8" -24") x SCH (5S-160S) x LENGTH (4000-13000) mm *Standards: ASTMA312/EN10216-5 D3/T3,ASTM A213/269/EN10216-5 and etc. *Applications:For use in the petroleum, vessel,foodstuff,power,chemical, papermaking,medical equipment, aviation, boiler heat exchanger. We have ISO 9001-2000, CE, PED, DNV, LR,KR,GL,ABS certificates and etc.