www.arksteeltube.comARK Steel Tube | Steel Tube Solution | Steel Tube Specialist Ark Steel Tube is a leading manufacturer and supplier of steel tube products, KWK STEEL is the subsidiary of Ark with over 12 years of experience. We are the preferred global solutions provider for stainless steel, duplex steel, carbon steel, alloy steel, and special nickel alloy tubing products. What materials can we provide? Ferrite/Martensite: TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439, TP446, etc. Alloy Steel: T1, T1a, T2, T5, T9, T11, T12, T17, T21, T22, T23, T24, T36, T122, P12, P5, P91, 15Mo3, 12CrMo, 15CrMoG, 1Cr5Mo, etc. Austenitic/Super Austenitic Steel: 304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S, 253MA, 330, 904L, S31254, XM-19, etc. Nickel Alloy Grade: N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219, N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925, N08926, N010276, N06022, etc. Duplex/Super Duplex Stainless Steel: S31803, S32304, S31500, S32550, S32750, S32760, etc. Carbon steel tube:A179,A192,A210,DIN17175,etc. Website: www.arksteeltube.com Email: export@tubectrl.com