Shanghai Tangshan Heavy Machinery International Co., Ltd(TSR) is a professional company supplying the rolls as well as the technical services. It has an expert team consisting of doctors majoring in material and metallurgical industry. Covering an area of over 300,000 m2, TSR is producing more than 20,000 tons of rolls and sleeves of various dimensions. Thanks to years’ exploration, TSR has developed series of products which are sold to over 30 countries and regions, including cast rolls, forged rolls and other casting products.Our plant is certified by ISO 9001:2008.