1、
Valves in these classes are also available with spiral wound gasket bonnet joints when specified.
如果用户要求,对于这些压力等级的阀门,我们也可以提供螺旋盘绕垫圈阀盖连接.
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2、
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.
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