Class 300-600: Fully-encased spiral wound graphite-filled stainless steel gasket.

600磅级：全封闭螺旋缠绕石墨填充不锈钢密封垫。

Valves in these classes are also available with spiral wound gasket bonnet joints when specified.

如果需要，这种压力等级的阀门也可配置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。

Meanwhile the performance of graphite spiral wound gasket under different technique parameters was analysed.

同时对不同工艺参数下的石墨缠绕垫片性能进行分析。

In such cases, can switch to spiral wound gasket, "o" ring and so on, are now a number of factories he already adopted.

遇到这种情况，可改用缠绕垫片，“O”形环等，现在许多厂已采用。