日本欧美不卡一区二区三区_欧美日韩精品福利在线观看_国产日本一区二区三区在线观看_亚洲国产一区二区我不卡_国产精品无污污流网站入口_国产特黄特猛特一级a级片

Predict the relative durability of coatings such as coatings and paints by simulating temperature, rain, and light exposure. It is also suitable for physical damage to durable materials, such as fading, pulverization, cracking, etc. The internal use of a rotating bracket allows the sample to be uniformly exposed to ultraviolet light, improving the consistency of the results. Built in water tank and water pump, using top spray to simulate outdoor rain. There is a heating tube inside the water tank, which simulates outdoor temperature by heating the water. The whole machine is made of stainless steel material, which is corrosion-resistant and improves the service life of the machine.

 

Standard：GB/T 1771、ISO 7253