zhongshan H.R.T. precision steel ball co.,ltd. China(CN)
Zhongshan H.R.T. precision Steelball Co.,Ltd. is the unique manufactuer in china,who possesses the most advanced productian line.the company facilities ,such as Heat-Treament Furnece,High Speed Heading machine and machine for flashing ,grinding ,la ...
Category: Steel balls
Register Time: 2008-01-09