... ),PC,ABS,PE,HDPE and so onUsage:for ball bearing,cosmetic package,industrial ,track ball,and so on hollow ballsize:10mm--100mmPP,POM ... ,PA(NYLON),PC,ABS,PE,HDPE and so on Usage:floating ball,valve ball ... ,sewage ball,cosmetic package,industrial ,track ball,and so on plastic roll on bottle ...