... For blow film For blow Molding For Injection Bag Sealing and Cutting Machine CaCO3 Filler Masterbatch 1. EC11B: 75% exquisite CaCO3 powder, can ... be used in film and bottle, Whiter than EC11C2. EC11C: 75% exquisite CaCO3 powder, can ... . EC21B: 80% exquisite CaCO3 powder, can be used in film and bottle. Whiter than EC21C5. EC21C: 80% exquisite CaCO3 powder, can ...