Jinan Sinai casting and forging co. Ltd is a Chinese-Foreign joint venture, which specializes in the production of grinding steel ball for ball mill.
　　The occupation of land area is more than 10000 square meters. There are 80 staff, 8 local technicians and 2 foreign technicians. The major production and inspection equipment includes pneumatic hammer, plasma cutting off machine, Luo type hardness meter, intermediate frequency electric stove etc.
Staff are trained and selected by strict overseas technology. The quality of products is consistent and the specifications are complete. The annual output of diameter DIA15MM-DIA150MM grinding steel ball is 20000 tons.