缠绕式垫片蒸汽密封性能试验方法怎么读
点击播放按钮播放发音:
Update Required
To play the media you will need to either update your browser to a recent version or update your Flash plugin.
- 缠绕式垫片蒸汽密封性能试验方法的英语:spiral wound gaskets test method of steam sealing characteristics