Great Plains Stainless,having more than 27 years experiences as the leader stocker in the wide world provides a wide range of alloys for stainless steel pipe, tube, flanges and fittings. With offices around the globe, we offer an international inventory and customized machining and stocking plans. If your operation demands it, we can provide it. Our specialty alloys: Stainless steel: 304H, 316 ,309, 310, 317L, 321/321H, 347/347H, 410, 446, 904L and Duplex 2205, Nickel Alloy: Monel 400, Inconel 600,C276 ect Alloy: P1,P5,P9,P11,P22 ect Carbon Steel: A179,A106,A53 ect Abarasion plates: Roc 400,Roc 500 Vessel plates: SA516 Gr 60,Gr 60N ,Gr 70 ,Gr 70 N Our specialty products: steel pipe, steel tube, steel fittings,steel flanges,and steel plates&sheet. Great Plains can easily offer you USA,Euro,China origional products.We provide GPSS OEM products and GPSS certificate.And we have owned ISO9001 Certification.