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Engineering Notes

What we know,
written down.

Standards explainers, procurement guides and field lessons — from the engineers who build the signals.

GQ

8M Traffic Light Pole With 6M Arm

8M Traffic Light Pole With 6M Arm by GAOQIAO. Model NJGQ-DGDB-8000-6000. Key specs: Product Size: 8000*360*300*6MM+6000*220*120*4MM; power consumption: Optional. Designed for traffic…

GQ

44-Output Traffic Signal Controller

44-Output Traffic Signal Controller by GAOQIAO. Model Traffic Signal Controller, NJGQ-XHJ-44-YX220. Key specs: Product Size: 395*395*175CM; power consumption: <0.2W/system. Designed for traffic…

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