Steel Ball is an important basic components and widely used in metal parts, electromechnical bearings, ball bearings, precision molds, metal crafts, decorative hardware, auto parts, motorcycle parts and other fields, especially in fine industry,steel ball plays a significant role in the national economy. In some special conditions, in order to complete the requirements of different environments to reach the function, it usually require special materials steel balls. In fact, some of the special materials have been widely used in various areas of the ball in the national economy, including 9Cr18,3Cr13 stainless steel, copper, aluminum, titanium and steel and agate, glass, ceramic ball, etc. Different material balls applications not only promoted the development of the steel ball consumption industry, but also promote the related industry technical development and technological progress. Ball is the most important part of bearings and used most rolling element in bearing industry . Its affects bearing quality directly. After years steel ball production experience, Zhongshan Qirun Precision Steel Ball Manufacturing Co.Ltd continuous promoting technological innovation and improving ball production hardware and software facilities to upgrade the steel ball quality. Today, Zhongshan Qianrun Precision Ball Manufacturing Co., Ltd. place forefront of the domestic precision steel ball production industry, especially in miniature steel ball production has obvious advantages as Q.R. are the first manufacturer in domestic that can 100% optical sorting balls below dia.3mm.