Backpacks,Rucksack,Jansport Backpack,Mini Backpack Ningbo Happiness Stationery Industrial & Trading Co Ltd , https://www.cnhappiness.com
In January 2004, Japan developed a multi-layer anti-corrosion coating suitable for steel structures. The coating is composed of a zinc-rich paint, a synthetic resin base paint, a middle layer paint, and a top coat which are sequentially coated on the surface of the substrate. This anti-corrosion coating has a strong NO removal activity and excellent anti-fouling properties. The shot peened steel sheet is coated successively with a zinc-rich paint (70% Zn concentration), a base paint containing Epikote 828-Tohmide 245 copolymer, the above middle layer paint and a top coat, and the resulting painted steel sheet is resistant to salt spray and The resistance and NOx removal are good.