... specialize in producing plastic balls. Hollow plastic ball diameter10mm100mm, are mainly used in the cosmetic packaging, sewage disposal, and for ... as PP,PE, POM, PA,PMMA and so on. The tolerance can be 0.01mm with good surface and precision ... ,PA,PMMATrackball,Ball valve,Bearing ball, Roll on ball,and so onHollow ball10mm-100mmPP,PE,HDPERoll on ball,Bearing ball,Ball valve,Floating ball,and so ...