What is the difference PE bag PP bag OPP bag PVC bag ?
The most obvious features:
PP, slippery, crisp and transparent
PE, slippery, tough, waxy, transparent than PP almost
PO, hard, translucent,
OPP, hard, crisp, the most transparent, open a small mouth easily broken
Pvc, slippery, tough, transparent
Calculate the unit price should be bag size, that is, long, wide, thick, the difference between the process of less than 1,000 yuan / ton