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常用型号：AQD-500TF-1/4" VAC-VALVE-401C VAC-VALVE-409-SSHTR-1/4" 100-3/8"-HOSE-1/4"-MNPT-3' 65R-3/8"-HOSE-1/4"-MNPT-7' 65R-3/8"-HOSE-1/4"-MNPT-9' AIRLOCK-550-TF-1/4" AQD-500TF-1/4" VAC-VALVE-406TF-1/4" VAC-VALVE-200 HP-40V HP-90V HP-120V HP-140V HP-200V HP-90H HP-140H HP-200H