PET and PVC are similar in appearance, but are quite different in attributes, so the following provides several methods to identify.
PET material can burn, will produce black smoke, no irritating smell
PVC material is non-flammable, self-extinguishing away from fire, and produces black smoke and pungent odor.
Bend the PET so that there will be no white folds in the middle
When bending the PVC, there will be a white crease in the middle
Pet is scratch-resistant and brittle in hand. PVC flexibility is good, soft feel. Pet as an environmentally friendly material, can be recycled, recycled, and PVC degradation is poor, has a negative impact on environmental protection.