JiangSu Guotai Int&＃39;l Group Machinery Imp. & Exp. Co., Ltd is one of the leading exporters in the field of steel tubes & pipes, and the products have approved by ISO 9001-2000 of LIOYDS, PED and API. Our products are approved by domestic and oversea customers. With the high quality, competitive price, credible lead time and satisfied services after sales, the company is winning more trust and long term cooperation from more customers.Titanium and titanium alloy tubeSpecification: to ASTM B/ASME SB 861, 337 and 338.Material: Gr.1, Gr.2, Gr.3, Gr.7, Gr.9 and Gr.12Diameter range: 6-159mm; Thickness range: 0.5-15mmNickel and nickel alloy tubes tubeSpecification: to ASTM B/ASME SB 161, 163 and 167Material: Nickel 200, nickel 201, Monel alloy 400, alloy 600Diameter range: 10-114mm; Thickness range: 0.9-10mmBearing steel tubesMaterial: GCr15, ASTM 52100, UNS G52986, JIS SUJ2Diameter range: 14-142mm; Thickness range: 1.7-18mmBundy tubes and condensersSpecification: to ASTM A 254Material: Low carbon steel tubePopular size: Diameter 4mm, 4.76, 6mm, 6.35mm, 7.94mm,8mm, 12mm;Thickness:0.5, 0.65mm, 0.7mm