普寧需牢記填料改集式密封的這些安裝要領
常(chang)用(yong)的密(mi)(mi)(mi)封(feng)(feng)型(xing)式主(zhu)要有填料(liao)(liao)密(mi)(mi)(mi)封(feng)(feng)、機械密(mi)(mi)(mi)封(feng)(feng)等,填料(liao)(liao)密(mi)(mi)(mi)封(feng)(feng)。填料(liao)(liao)改集式密(mi)(mi)(mi)封(feng)(feng)是一種較為原始(shi)的接(jie)觸式密(mi)(mi)(mi)封(feng)(feng),具有結(jie)構簡單、成本低、更(geng)換簡便等優點(dian)(dian),由(you)于這(zhe)些優點(dian)(dian),因而在石油工業...