Glass ball ball \ beads glass ball (special alkali glass ball) is a sodium calcium silica alkaline glass, use: 1, production of plastic ball bearings; 2, production of disposable plastic bottle with a sealed glass ball security; 3, fuel, paint, ink, polyester, medicine and so on several industry and light industry of the grinding media; 4, the chemical production of contact media, fillers and so on. Mainly exported to Europe, Southeast Asia and other countries and regions. 

 Appearance of the product quality requirements: 
 Glass ball diameter A ± 0.3mm. Margin of not more than 0.20mm (note: the maximum radius and roundness is the difference between the minimum radius). 
 Glass ball can not have a diameter of 0.5mm below the dense bubble, bubble diameter of 0.5mm or more should not exceed 3. 
 Glass ball can not have the stones and colored impurities. 
 The surface of the glass ball can not have a length of more than 3mm of the explosion skin. 
 The surface of the glass ball without any oil, alkali powder, rust, severe pitting and other impurities without a net wash. Scar depth of cut glass ball no more than 1mm. 
 Product size (diameter mm) 9.0 9.5 10.0 10.5 11.0 11.5 12.0 13.0 14.0 15.0 16.0 18.0 20.0 
 Product qualification rate: ≥ 98%