Research and Application of the Airproof Material of Cable Pipe

　　電纜管道密封材料的研究與應(yīng)用

　　Research on Permanent Pressure Detecting Method of Gas Container Airproof

　　氣缸密封性的恒壓檢測方法

　　Top open door design for better airproof and durable use.

　　頂開式雙門結(jié)構(gòu)，結(jié)實(shí)耐用，密封性更好

　　A rainproof parka provides protection against wet and cold weather.

　　一件防雨派克衫可以御寒防潮。

　　The roof of our house is no longer rainproof.

　　我們的房頂已經(jīng)漏雨了。

　　Aluminum rainproof shutter, using the type design is more advantageous to plates of water leakage.

　　鋁合金防雨百葉窗，采用階梯式的頁片設(shè)計(jì)更有利于雨水滲漏。