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What Are The Methods To Identify Good And Bad Wool?
May 29, 2018

Identifying wool is good or bad, the method is very simple. The following three methods we can refer to:


1, no smell, normal PVC material does not appear pungent smell.


2. Wrap the tops as tightly as possible on the profiles and place them under high-temperature conditions for a period of time. Observe whether the contact surface between the surface of the profile and the tops is stained or discolored. Whether the dust on the surface of the tops is yellow or not.


3, the general price of cheaper tops will be more fillers, the surface will not be very bright, so cheap and do not look as bright as possible not to choose.

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