国产成人视屏_成人毛片视频在线观看_久一视频在线_我看一级毛片_青青草精品在线视频_久久久久久国产精品

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...