国语对白露脸xxxxxx-欧美成人精品高清在线播放- ,新伊人,新伊人福利网,新伊人导航网 - 最新伊人综合基地。 ,囯产精品一区二区三区线_久久精品国产99久久6动漫_

1、 Scope of products applicable for anti-corrosion level testing and certification:

The anti-corrosion level testing certification is applicable to anti-corrosion electrical and electronic products used indoors and outdoors, including household and similar appliances, road electrical equipment, elevator electrical components, electromechanical equipment, lighting appliances, electronic information and multimedia equipment, and other products.

2、 Based on the standard:

3、 Corrosion protection level classification: Outdoor level 3, Indoor level 2

Service Hotline: 18924609560 (same WeChat account)