膠州需牢記填料改集式密封的這些安裝要領
常用的密(mi)(mi)封(feng)(feng)型式主要有(you)填(tian)料密(mi)(mi)封(feng)(feng)、機械密(mi)(mi)封(feng)(feng)等,填(tian)料密(mi)(mi)封(feng)(feng)。填(tian)料改(gai)集式密(mi)(mi)封(feng)(feng)是一種(zhong)較(jiao)為原始的接(jie)觸(chu)式密(mi)(mi)封(feng)(feng),具(ju)有(you)結(jie)構簡(jian)單、成(cheng)本低、更換簡(jian)便等優點,由(you)于這(zhe)些優點,因而在(zai)石油(you)工業...