steel prop meaning in English

钢支柱
铁柱

Building site equipment - fitness for use and implementation of adjustable telescopic steel props
建筑工地设备.可调可伸缩钢支架的适用性
En 1065 adjustable telescopic steel props . product specifications , design and assessment by calculation and tests
可调节套筒式钢架.产品规范设计和通过计算和试验的评估
Adjustable telescopic steel props - product specifications , design and assessment by calculation and tests
可调节的套筒式钢支架.产品规范设计和通过计算和试验进行的评估
Adjustable telescopic steel props - product specifications , design and assessment by calculation and tests ; german version en 1065 : 1998
可拉伸调节的钢结构支撑件.产品规范,通过计算和试验