天天接活网三通阀盖 triple-valve cap 三通阀 tee valve; three-port valve; three-way valve; triple valve 事实上天天活虾三通电缆分线盒 three-way coupling box ..
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three-port magnetic valve 三通电磁阀
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S with signal output port: by electronic control in the mainboard to often open and closed, public three port fuses can external electromagnetic valve or booster pump.
带有信号输出端口：由电子控制主板里的常开、常闭、公共三个端口引线可外接电磁阀或增压泵。
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