1. PP is environmental protection material.
2. the difference between PP and PVC can be clearly distinguished from both the appearance and the feel of hand. PP feels hard while PVC is relatively soft.
3.The best test method is to burn the two materials with open fire. If there is black dust, it is PVC ,otherwise it is pp.
4. Smell can also be distinguished, PVC has choking smell, and PP is tasteless
5. PVC is generally solid board, pp can use for pp hollow sheet and solod board together.
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