Shan Dong SiHaiYouYuan Import and Export CO.,LTD mainly engaged in stainless steel pipe, plate, bar, coil, alloy steel pipe and seamless steel pipe, diverse specifications and diverse material. The company also can be customized for users of large diameter special material special thickness of the stainless steel pipe, plate, bar, coil. Main source of products, such as large steel works of TISCO,BAOSTEEL. Products are widely used in petroleum, chemical, pharmaceutical, paper making, ...