screw plug meaning in English

防爆堵头
螺旋插头
螺旋接线柱
螺旋塞；螺纹堵头
头塞

The parts and units of jigs and fixtures . screw plug
机床夹具零件及部件.螺塞
Components of injection mould for plastics . spacer with screw plug
塑料注射模零件.带螺塞隔片
Light - duty hexagon head screw plugs
六角头螺旋塞.轻型，圆柱螺纹
Screwed connection for handles and brooms ; screw cap and screw plug
手柄和扫帚用螺钉连接.螺帽与螺塞
Hexagon - duty hexagon head screw plugs
六角负荷六角头螺塞

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