沔城回族鎮需牢記填料改集式密封的這些安裝要領
常用(yong)的密(mi)(mi)封(feng)(feng)(feng)型式(shi)主要(yao)有填(tian)料密(mi)(mi)封(feng)(feng)(feng)、機械密(mi)(mi)封(feng)(feng)(feng)等(deng),填(tian)料密(mi)(mi)封(feng)(feng)(feng)。填(tian)料改集式(shi)密(mi)(mi)封(feng)(feng)(feng)是(shi)一(yi)種較(jiao)為原始的接(jie)觸式(shi)密(mi)(mi)封(feng)(feng)(feng),具有結構(gou)簡(jian)單、成本低、更(geng)換簡(jian)便等(deng)優點,由于(yu)這些優點,因而在石油工業...