How do drain board manufacturers teach you to identify plastic drain boards

Drainage board manufacturers teach you how to identify:

1. First look at the surface finish, and whiteness.

2. Take the sample to beat, easy to break the general.

3. Take the sample and step on the edge of the pipe to see whether it can crack or the elongation at break after cracking.

4. Each batch of products of plastic drainage board shall have the certificate of quality and the sampling test certificate of the qualification testing unit (in accordance with the NATIONAL standard) before leaving the factory. Unqualified and untested products shall not be used.

Introduction to drainage board manufacturer:

1. Complete width and thickness specifications, high tensile strength, good elongation, strong uv resistance, low size change rate of heat treatment.

2. Drainage board materials are plastic products, which are natural enemies of ultraviolet light.

3. Physical properties: drainage rate and water retention performance, drainage rate is fast, soft and delicate after drainage, feel is very |.