valve sheet spring 阀片弹簧
exhaust valve sheet 排气阎片
exhaust valve data sheet 排气门资料页
ON-OFF VALVE DATA SHEET 开关阀数据表
TWO-SHEET BALL VALVE 二片式球阀
ONE-SHEET BALL VALVE 一片式球阀
THREE-SHEET BALL VALVE 三片式球阀
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。
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