Shandong Golden Ocean heavy Technology Co. Ltd ( the successor of the Jinxiang Alloy Steel Limited¡ªLiability Company) , specialize in manufacturing corrosion--,heat--,wear--,pressure¡ªresistant alloy steel castings and small¡ªbore stainless steel tubes and fittings, an appointed manufacturer of Beijing General research institute of Iron&Steel belonged to Ministry of Metallurgical Industry