曰本久久久_欧美大胆视频_少妇高潮一区二区三区99_欧美4一9sex娇小性hd_久久久久人人_99国产精品久久久久久久...

Shanghai zhongshang filter material co., ltd

Qingpu, Shanghai, was born in 2008. It is an emerging enterprise with a complete set of production lines for primary, medium and high efficiency filters. From the very beginning, Zhongshang filter materials attached great importance to the concept of "evolution first and internationalization" as the guidance; based on the outstanding quality, it continuously explored, developed and worked hard. Our main business scope: primary, medium efficiency filter cotton, seamless welding filter bag G3, G4, F5, F6, F7, F8 coconut brown filter screen, ceiling filter cotton, paint fog felt for...