bleed screw
... screw nut螺母;螺帽;螺脚 bleed screw放气螺钉;减压螺钉;排气螺塞;带孔螺钉 SCREW STUDS螺旋椿 ...
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开槽带孔球面柱头螺钉 slotted capstan screw
本实用新型是由双孔面板、带元件的印制板和螺钉构成，采用的是二分配器电路。
The utility model is composed of a double-hole panel, screws and a printed board with elements, and a second distributer circuit is adopted.
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