人妻丰满熟妇AV,欧美日韩在线视频专区免费,国产激情无码一区二区视频,丰满亚洲大尺度无码无码专线,久久亚洲精品国产精品黑人 ,精品国产一区二区三区免费看,性色AV无码免费一区二区三区 ,精品久久久久久无码人妻热 ,欧美日韩精品一区二区三区不卡,久热国产vs视频在线观看

1. Strong acid and alkali resistance. pH can reach 1-14.

2. It can resist the penetration of small molecular gases, including oxygen, carbon dioxide, chlorine and oxygen chloride.

3. High purity. Very low precipitation rate. It meets the purity requirements of photovoltaic industry.

4. Excellent electrical performance.

5. The use temperature is wide, ranging from ultra-low temperature to 150 C.

6. Good weather resistance.

7. Flame retardant (oxygen limiting index greater than 52%) is more difficult to burn than traditional fluoroplastics.

8. The surface of fluoroplastics is extremely smooth. It is the smoothest decay surface of all fluoroplastics, and the friction coefficient is very small.

9. Strong mechanical properties. Harder, stronger and better wear resistance than traditional fluoroplastics.