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燃氣緊急切斷閥
型號：ZCRB
規(guī)格：DN15-DN500
煤氣電磁閥
型號：ZCM
規(guī)格：DN15-DN350
電磁式煤氣切斷閥
型號：DMF-0.1
規(guī)格：DN100-DN1000
