How to identify quality pvc plastic plate

How to identify the quality of PVC plastic sheet:

1. Look at its surface gloss gloss differential is recycled plastic

2. Look at the toughness of pure raw materials PP polypropylene plastic plate excellent toughness can Microbend

3. Look there will be a different color of the cutting surface after cutting recycled plastic miscellaneous materials

4. See the density polypropylene PP density of 0.92 to 0.93 are floating on the water feed polypropylene

5. their heating welding recycled plastics welding smoke there

6, transmittance, recycled plastic transmittance difference

7, toughness, recycled plastics are also a lot worse.

8, density, throw the water to see is not floating on the water, renewable mostly sink to the bottom.