1. strong, clear glass is PMMA, PC, PS, Co polyester (Tritan) replace PC
2. stiff, solid, such as raw materials in the Olifin group:
PP HOMO PP is 2.1, PP COPO
PP COPO as COPO RANDOM, COPO BLOCK
HDPE
2.2 2.3 2.4 ABS ABS
. 3. clear transparent special soft PVC is
,
PET 4 LDPE, LLDPE is a solid light.
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