Plastic Hollow Floatation Ball Introduction Model Hollow Floatation Ball Material PP, RPP, PE, PVC, CPVC, PVDF, etc. Specification of PP floatation ball Surface area Free volume Bulk density Numer per m³ Specification of PP materials (mm) (m²/m³) (%) (kg/m³) PCS ø 25*1.0 200 40 125 41500 ø 38*1.…