We have summarized some features of woven wire cloth and share them with you today.

1. The thickness of oxide film is thin. The standard stipulates that the oxide film thickness of woven wire cloth in buildings shall not be less than 10um (micron). If the thickness is not enough, the surface of woven wire cloth is easy to rust and corrode. In the sampling inspection, the oxide film thickness of some woven wire cloth without production name, site, production license and certificate is only 2 to 4um, and some even have no oxide film.

2. Unqualified chemical composition. Woven wire cloth mixed with a large amount of miscellaneous aluminum and waste aluminum can greatly reduce the cost, but it will lead to unqualified chemical composition of woven wire cloth, which will seriously endanger the safety of construction engineering.

3. Reduce the wall thickness of profile. 90 series sliding window type. According to the standard, the wall thickness of woven wire cloth is lower, not less than 1.4mm, and some Guangdong products are only 0.6 to 0.7mm. 46 series floor spring door. The wall thickness of woven wire cloth used in the standard is lower, not less than 1.62mm. In the sampling inspection, some products in Guangdong are only 0.97 to 1.18mm.

4. Woven wire cloth greatly reduces the closing time, reduces the loss of chemical reagents and reduces the cost, but the corrosion resistance of profiles is also greatly reduced.