麻花豆星空天美糖心mv-星麻花传媒mv-星空天美梦幻mv免费-天美麻花星空果冻mv-62星空天美梦幻糖心mv-天美电影免费在线观看Bolt as a kind of hardware products, it is difficult to avoid some air oxidation corrosion, which is all normal! As we all know, the higher the corrosion resistance of bolts is, the less likely it is to rust, and the quality of bolts is more environmentally friendly. As a result, many medium and high-grade companies are pursuing perfect and high-quality bolts to improve the quality of their products. Large brim double drum rivets are used to consider customers with higher quality requirements.

麻花豆星空天美糖心mv-星麻花传媒mv-星空天美梦幻mv免费-天美麻花星空果冻mv-62星空天美梦幻糖心mv-天美电影免费在线观看Generally speaking, different materials of bolts and different surface treatment of metal lead to different corrosion resistance. General bolts if not electroplating process, corrosion resistance capacity is generally in 24-3 days, metal bolts to be longer. However, if the metal surface treatment such as electroplating process and air oxidation can be carried out, the corrosion resistance of the rivet can be further improved. The white zinc plating process can increase the corrosion resistance of bolts to 48-3 days, while the environmental protection of blue zinc plating process can even increase to 128-200 hours. Some manufacturers who have extremely strict regulations on the anti-corrosion ability of bolts have even stipulated 1000 hours of salt spray test. This kind of bolt can not be made by rivet manufacturers, but we can consider the strict management of customers according to the phosphating treatment of nickel base alloy. Even if you have a higher level of talent requirements, we will try our best to deal with it for you!

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