Shandong Golden Ocean heavy Technology Co. Ltd ( the successor of the Jinxiang Alloy Steel Limited?Liability Company) , specialize in manufacturing corrosion--,heat--,wear--,pressure?resistant alloy steel castings and small?bore stainless steel tubes and fittings, an appointed manufacturer of Beijing General research institute of Iron&Steel belonged to Ministry of Metallurgical Industry The brief introduction of products we supply are: The heat--,corrosion?,wear?resistant seamless alloy steel tubes &fittings of which outer diameters rang from 50mm to 1500mm, the maximum of wall 200mm,sole length ranging from 3000mm to 5000mm according to the requirements. The manufacturing process is : many kind of alloy materials are smelted into the qualified molten steel according to certain matching ,then cast into various tube bases under the centrifugal function .Being fine in structure and crystallization ,the products have excellent performing of anti?pressure ,oxidation?resistance ,sustained intensity under high temperature.It can work for long under temperature 800 degree centigrade to 1200 degree centigrade and under pressure 30?40kgf each square centimeter . The products we supply as well cover the cold?drawing stainless steel tubes ,fittings ,valves,stainless steel pumps.etc.,which have fine performing of heat- ,corrosion-,wear-resistance.We can supply ceramic complex steel tubes which outer diameters rang from 68mm to 630mm,sole maximum length 4000m.The process is: spray molten alumna with temperature more 2600 degree centigrade over the internal surface of complex steel under centrifugal function ,and generate the complex steel made of ceramic layer ,transitive transitional layer and steel layer. Being fine in performing of wear-,heat-resistance and sustained intensity against mechanical hit and heat hit ,they are suitable for the conveying condition of serious wearing,eroding. The quality assurance system of our company complie