Features: 1) Size: OD (159-1500)mm x (3-20)mm x (optional length) meanwhile we can also produce other specifications according to customers' requirements 2) Material: SS304 SS304L SS310 SS316 SS316L SS321 SS202 SS201 3) Standards: GB/T14975-2002, GB/T14976-2002, GB13296-91, GB9948-88, ASTM A312, ASTM A213, ASTM A269, ASTM A511 4) Our products are corrosion proof and high-temperature resistant 5) Applications range: for use in the petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment, aviation, boiler heat exchanger, and other fields 6) our products have more advantage than seamless stainless steel pipe as below : Apply to much more field; even appearance; smooth and flat inside wall, higher quality with perfect appearance, 7) our products pass approval of ISO9001 and we have a strict and advanced test system to control our product quality such as Eddy current inspection ,hydraulic inspection ;x-ray inspection and induction heat treading (bright or black )