According to media performance and the use of period and should always check the valve orifice at the top of the Ministry of PTFE seals and PTFE sheet.
根据介质性能及使用期，应经常检查阀体顶部四氟密封圈和孔板部的四氟薄片。
The metal elastic sealing sheet presses the pressure relief valve inside the pressure relief valve hole.
金属弹性封片将卸压阀卡压在卸压阀孔内。
Elaborates al sheet mill spray system, introduces mill spray control mechanism of electro-air proportional valve.
阐述铝箔轧机喷淋系统，介绍电—气比例阀在轧机油喷淋方面的控制机理。
Asbestos rubber sheet in which the structure of dense, good pressure, good heat resistance, and valves in the valve itself and the pipe flange connection, the use of a wide range.
其中石棉橡胶板结构致密，耐压性能好，耐温性能也很好，在阀门本身和阀门与管子的法兰连接中，使用极为广泛。
Asbestos rubber sheet in which the structure of dense, good pressure, good heat resistance, and valves in the valve itself and the pipe flange connection, the use of a wide range.
其中石棉橡胶板结构致密，耐压性能好，耐温性能也很好，在阀门本身和阀门与管子的法兰连接中，使用极为广泛。
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