中压高温时，选用金属与非金属组合密封垫或金属密封垫；

Medium voltage high temperature, choose a metal and nonmetal combination gasket or metal gasket;

youdao

中压高温时，选用金属与非金属组合密封垫或金属密封垫；

Medium voltage high temperature, choose a metal and nonmetal combination gasket or metal gasket;

youdao