LINKUN® was founded in 2000, headquartered in Xi'an, China, the hometown of our President Mr. Xi Jinping and the starting point of new "Belt and Road" and old silk road, as a leading manufacturer and exporter of Steel Pipe and Speical Alloys, LINKUN® has been insisting on creating value for customers, always adhering to the development strategy of "supplying high-end products, establishing world-renowned enterprise" to provide global customers with superior quality products and high-quality services. Through the resource integration of a variety of metal materials, LINKUN® has become one of the biggest METAL SUPERMARKETS and can provide all kinds of special metal materials which are made in China and imported to our customers. Our product range: Line Pipe (B, X42, X46, X52, X56, X70, X80, X90, X100 + N/M/Q, A333 Gr.1/3/6, A335 P5/P9/P11/P22/P91, A671/A672/A691) OCTG (J55, K55, L80, L80-9Cr, L80-13Cr, N80-1, N80Q, P110) Drill Pipe (E75, X95, G105, S135) Boiler Tube (A179/A192/SA210-A1/C,P235GH,P265GH,ST35.8,ST45.8,16Mo3,10CrMo9-10,13CrMo4-5, T2/T5/T9/T11/T22/T91) Gas Cylinder Pipe (34CrMo4, 4130X) Stainless Steels (304H,310S,316/316L/316H,316Ti,321H,347H,904L,S31803/S32205/S32750/S32760,15-5PH, 17-4PH, 440C) Titanium Alloys (Gr. 1, Gr, 2, Ti6Al4V, Gr. 9) Nickel Alloys (Nickel 200/201, Inconel, Monel, Hastelloy) Aluminum Alloys (3003, 6061-T6) Copper Alloys (UNS C17000/C17100/C17500/C44300/C44400/C44500/C70600/C71500) Special Steels (4130, 4140, 4340, 52100, 300M, 8620, H13, T1, T4, T5, M42, M35, M2) Our Pipe and Tube Size Range: 1. SEAMLESS: O.D: 10.3-1067mm, W.T: 1.73-150mm 2. WELDED: O.D: 406.4-1422mm, W.T: 6.4-44.5mm Through years of effort, LINKUN® has exported hundreds of thousands of tons of high-quality STEEL to North America, South America, Gulf countries, Africa, CIS and Southeast Asia. The products have been exported to more than 60 countries and regions, we are delivering worldwide.