Two kinds of packing: i. e. carbon with fiber and soft graphite are used. The sealing effect is excellent for high pressure boiler F. W. P.
选用碳素纤维填料和膨胀石墨填料混合使用,密封效果良好。
2
The graphite molded packing, the asbestos thread PTFE-greased braided packing and the carbon-fibre braided packing were tested and the coefficients of a cycle ring were experimentally determined.