bracket arm meaning in English

单臂线担
托架臂

It provides steady lifting with low noise , and is equipped with lifting brackets , anti - fall supporting protection , stopping protection against wire fracture , limiting device for maximum load , control device for maximum lifting height and fixing device for the turning angle of the bracket arm
升降平稳、噪音低，并设有举升托架、防跌落支承保险、钢索断裂制动保险；最大负荷限定装置和托臂回转角度锁定装置。