lowering valve


  • 翻译:下降阀

同义词

1)lowering valve,下降阀2)manually operated down valve,手动下降阀3)boom lowering valve,动臂下降阀4)boom lowering vent valve,动臂下降放气阀5)boom manual lowering valve,动臂手动下降阀6)lowering speed control valve,下降速度控制阀

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