... master batch for plastic and rubber for blown film CaCO3 based CaCO3 filler master batch TMC transparent filling masterbatch in rubber and plastic ... 1, filler master batch manufacture2, 85% CaCo3 and Virgin PE based; 3, for blown film4 ... ,this filler masterbatch is widely used in plastic products for blown film,extrusion & injection molding,casting,filament,fiber etc ...