婷婷午夜天,日韩GAY小鲜肉啪啪18禁,中文字幕在线无线码中文字幕,2017亚洲天堂最新地址

SERVICE SUPPORT ALL EFFORTS IS ONLY FOR YOUR SMILE.

FAQ

Q

WHY DOES PRESSURE-SENSITIVE TAPES SHOW DIFFERENT STICKINESS IN WINTER AND SUMMER?

A

As the glass transition temperature of pressure-sensitive tapes is -20℃ to -50℃, when the room temperature is lower, the tape is closer to the glass state, which shows that the adhesive surface will become "hard", and the initial adhesion and peeling will decrease.


Q

WHY DOES THE ADHESIVENESS DECREASE DURING TAOE STORAGE?

A

1. The moisture in the air will reduce the adhesiveness of the tape;

2. Silicon transfer of the release material will reduce the adhesiveness of the tape.

久久精品娱乐亚洲领先| 成人AV片无码免费天天看| 精品免费一区二区在线| 国产男女猛烈视频在线观看| 精品日韩亚洲AV无码一区二区三区| 在线观看的免费网站|