Make an inventory of all ring gaskets.
开一个所有垫圈的清单。
Valves in these classes are also available with spiral wound or ring joint gaskets when specified.
如果用户要求，这些压力等级的阀门也可提供螺旋盘绕或环连接垫圈。
Valves in these classes are also available with spiral wound or ring joint gaskets when specified.
如果用户要求，这些压力等级的阀门也可提供螺旋盘绕或环连接垫圈。
应用推荐