... POM PP PMMA ABS,Nylon MOQ:200000 3.969mm plastic bearing ballItem:Q-S3.969Ball diameter:3.969mmMaterial:PP POM PMMA ABS PA ... in cosmetic bottles,bearing ball,ball valve,trace ball3.The diameter of solid ball from:3.5mm--55mm, hollow ball:9. ... speciallized in designing and producing plastic roll on ball, plastic bearing ball, plastic cosmetic packaging bottle and plastic floating ball.Our products have ...