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蒸汽疏水阀.技术条件
Automatic steam traps.Technical specification
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液化气体设备用紧急切断阀
Emergency shutoff valve for LG equipment
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工业阀门.金属隔膜阀
Industrial valves.Diaphragm valves made of metallic materials
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法兰和对夹连接弹性密封蝶阀
Flanged and wafer resilient seal butterfly valves
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比例式减压阀
Ratio pressure reducing
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电热水器用安全阀
Electric water-heater safety valve
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热水系统用温度压力安全阀
Temperature/pressure safety valve for hot water supply system
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先导式减压阀
Pilot operated pressure reducing valves
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减压阀.性能试验方法
Methods of performance test for pressure reducing valves
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减压阀.一般要求
General requirements for pressure reducing valves
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