6 drywall screws

If the coating roughness is not caused by the above reasons, it may be caused by impurities in the plating solution. Can take a small amount of electroplating solution, filtration test, and then take a small amount of electroplating solution, with zinc powder treatment after the test, check the problem is solid particles or copper, lead and other foreign metal impurities caused by. One by one, it’s not hard to find the cause of the problem. Galvanized iron wire coating blister, poor adhesion.

Generally, the main reasons for the rust of iron wire are: when the steel mesh in the metal mesh appears some dust, this time you can use some water or alkaline solution cleaning. Followed by floating iron or embedded iron, iron will rust, connected to the stainless steel plate mesh of iron rust, so these iron must be dealt with, can use carbon steel wire brush can also be used for processing carbon steel and so on. Then is the scratch, for the scratch, mainly in the production process, need some stubborn iron scratch stainless steel plate net special polishing cleaning machine.