龍安需牢記填料改集式密封的這些安裝要領
常用(yong)的密(mi)封(feng)(feng)(feng)型式(shi)主(zhu)要(yao)有(you)填(tian)料密(mi)封(feng)(feng)(feng)、機械密(mi)封(feng)(feng)(feng)等,填(tian)料密(mi)封(feng)(feng)(feng)。填(tian)料改集式(shi)密(mi)封(feng)(feng)(feng)是一種較為原始(shi)的接觸式(shi)密(mi)封(feng)(feng)(feng),具有(you)結構(gou)簡(jian)單、成本低、更換簡(jian)便等優點(dian),由于這些優點(dian),因(yin)而在石油工業...