免费国产a国产_亚洲中文字幕丝祙制服在线_国家一级在线播放高潮_在线一区中文字幕无码 _国产区在线视频就爱_欧美日韩国产精品综合色_亚洲中文字幕无码永久

　　Product type: hot melt adhesive

　　Implementation standard: SY/T4054-2003

　　Main performance: excellent tensile strength and strong bonding performance, can effectively resist the soil stress, external impact and thermal expansion,

　　prevent the corrosion layer deformation and stripping, greatly prolong the anticorrosion life of the protected body.

　　Scope of application: long distance buried steel pipeline, oil storage tank, old pipeline maintenance, repair and pipeline interface corrosion prevention.

　　Product advantages:

　　1. Excellent wear resistance;

　　2. Acid, alkali, salt resistance;

　　3. Prevent the invasion of moisture and corrosion.