sinai casting and forging co, ltd Private Limited started off as a leading Manufacturer and Exporter of Grinding Steel Balls. Since inception, our production facility has marked perfection in terms of quality and reliability of grinding steel balls, delivered worldwide. sinai casting and forging co, ltd was inaugurated back in 2011 with US$10 Million initial business capital, holding export history over 9 Years .Construction equipment and material demands finest quality in terms of make and aesthetic appeal and by successfully complying with industrial demand we have reached US$50 Million - US$100 Million annual revenue and Australia,Canada,Denmark,United States,South Africa export market share. We take pride in our credibility, operating with a Have Own Export License in Zhangqiu, Shandong, China.Our corporate venture follows strict quality control procedures, thanks to state of the art equipment and skilled professionals. With years of experience we have mastered the art of developing finest quality products with sourcing raw material that guarantees reliability and years of service. For product queries and pricing details contact Em.