一级片aaaaa丨国产在线视频一区二区董小宛性色丨日产精品一区2区卡四卡二卡丨国产亚洲视频在线观看播放丨国产自产一区二区丨国产亚洲精品久久7788丨在线观看亚洲国产丨熟女女同亚洲女同丨一区在线视频丨少妇一级淫片免费放播放丨午夜福利电影无码专区丨日批视频网站丨综合久久久久久综合久丨欧美阿v高清资源不卡在线播放丨欧美77777丨久久久久久国产精品无码超碰丨无码专区亚洲综合另类丨九九福利丨青青国产精品视频丨在线色综合丨久久这里只有精品9丨91视频国丨黄色免费视频在线丨国内精自线一二三四在线看丨国产精一品亚洲二区在线播放

　　 paint production of aluminum veneer is divided into two small steps: the first step is sheet metal processing. The important thing in this process is to grind the aluminum veneer into the shape and size required for construction after cutting, folding, bending, arcing, welding, and grinding the flat plate. The second step is lacquer. Lacquer is to paint paint or paint powder on poorly ground sheet metal.

　　 lacquer is divided into two types, one is natural lacquer and the other is machine spraying. Machine paint is generally only suitable for regular flat plates, but this kind of aluminum veneer is difficult to use in theoretical applications. Most domestic manufacturers use artificial paint. Natural paint is a risky job, because the volatility and toxicity of paint or powder are higher than those of pseudo-weak, it is very difficult to form a chronic benzene series poisoning, which slightly impacts the Weinan. A small advantage of natural paint is that the color can be chosen regardless of the amount, so the roll coating of aluminum-plastic panels must reach a certain amount to dry enough for processing. The processing process of aluminum composite panel is simpler than that of aluminum veneer. The important thing is that there are four small processes of formation, color matching, mixing and trimming. These four processes are mechanical consumption except for trimming. It can be seen from the processing process that aluminum-plastic panels have certain advantages in environmental protection and war safety. In addition to the simplicity of the sheet metal processing process of aluminum veneer, some private workshops have also turned into a turning point, which slightly impacts the stability of the market quality of aluminum veneer.

The above is the relevant description about the processing of seamless aluminum veneer products.