... 3, free sample 4.prompt delivery Hot sale PVC Resin K-67, K-65Molecular Formula: (C2H3Cl)n CAS No: 9002-86-2Einecs ... , indefinite form powder (1)Specification: Index\GradeSG1SG2SG3SG4SG5SG6SG7SG8Viscosity ml/g (or k value)Average Degree of Polymerization156-144(77-75)143-136 ... 25kg pp bag. 17 Metric Ton Hot sale PVC Resin K-67, K-65