... of manufacturing product stainless steel balls for rolling on the bottle1) We are specialize in producing plastic ... as PP,PE, POM, PA,PMMA and so on. The tolerance can be 0.01mm with good surface and ... valve,Floating ball,and so onRoll on ball and holder8mm, 10mm,19.05mm,25.2mm,25.4mm,29mm, ... 35.2mm,35.56mmPE,PPCosmetic packagingGlass roll on bottle10ml,25ml ...