1. If possible, try to check the raw materials in the manufacturer's workshop. The raw materials of high-quality steel wire skeleton plastic pipes must be raw materials, and no recycled materials or recycled materials shall be added. Pe10 grade polyethylene particles are used for steel mesh skeleton plastic pipes. Each raw material is transparent milky white particles. All production lines have a raw material box, 98% of which are white particles, and a few are black particles. This is the color master batch, which is a normal phenomenon. However, if there are gray or other colored particles in the raw material box, it can be sure that they are recycled materials and recycled materials. The pipes produced by such manufacturers have certain potential safety hazards, so try not to buy them.

2. Sampling inspection. At present, the provincial quality inspection unit can inspect whether the steel wire mesh skeleton plastic composite pipe is connected to the network, mainly inspecting the appearance, size, compression cracking stability, peel strength, thermal stability (200 ° C), melt mass flow, short-term hydrostatic strength test, bursting strength test, hydrostatic stability of the composite layer, etc.

3. Observe whether the inside and outside of the pipe are even and smooth. Some inferior steel mesh skeleton plastic composite pipes have rough inner walls, similar to bark, and some have small bubbles on the surface. These are unqualified products, and it is recommended not to use them. At the same time, the appearance of pipes produced by some manufacturers is very bright. The pipe is added with whitening agent, which also does not meet the relevant national standards. Please purchase with caution.

4. Check the pipe surface for codes. According to the Chinese urban and rural construction industry standard CJ/t189-2007, the surface of the steel mesh skeleton plastic composite pipe must be marked with the manufacturer's name, specification, pressure, executive standard, production date, batch and other data. If there is no such code, there will be no products. Avoid using them.

5. Check whether there are relevant quality inspection reports and certificates. This is basically necessary when purchasing materials. This is necessary information.