1)10 years experience of manufacturing PP hollow ball 2)size:25-50mm 3)material: PP, ... PE,PVC,CPVC,PVDF 4)ISO9001:2000 Plastic Hollow Ball Random PackingsPlastic tower packings are made from polyethylene(PE), ... , Teller Rosetter ring, Hollow ball, Polyhedral ball, Cage ball and Covering ball,HQR ring. Characteristic Indexes of Plastic hollow ballNameNormalmmDiameter×Height×ThicknessmmSurface aream2/ ...