How do you distinguish PE case from abs case?

How do you distinguish PE case from abs case?

How is PE different from abs? You can't burn or destructive test? 

Then distinguish from the following five aspects:

1. Look: the appearance is similar, but the lines on the surface of PE material are larger;

2. Touch: PE feels very smooth, oily and repellent to glue;

3. Pressing: find a large area and press it hard. ABS is very hard and PE is soft and elastic. It can be deformed and restored to its original state;

4. Weigh: it feels light to carry, and PE is the one with moderate weight;

5. Inquiry: can the supplier guarantee? Including the deformation and damage of materials, those who dare to promise are those who have spectrum in mind. It should be more likely to be PE.

Of course, a trusted suppliers will tell you which is PE and which is ABS, and how to identify conscientious businesses. This article does not provide guidance.