鐵嶺需牢記填料改集式密封的這些安裝要領
常(chang)用的密(mi)封(feng)(feng)型(xing)式主要有(you)填(tian)料密(mi)封(feng)(feng)、機(ji)械密(mi)封(feng)(feng)等,填(tian)料密(mi)封(feng)(feng)。填(tian)料改集式密(mi)封(feng)(feng)是一種較為原(yuan)始的接(jie)觸式密(mi)封(feng)(feng),具有(you)結構簡(jian)(jian)單、成本低、更換簡(jian)(jian)便(bian)等優點(dian),由于(yu)這些優點(dian),因而在(zai)石油(you)工(gong)業...