防爆型起重量限制器 Explosion-proof Load Lifting Limiter
FDZX-1A(5W)型起重量限制器(系統) FDZX-1A (5W)-type Load Lifting Limiter
FDZX-1A起重量限制器儀表 Load Lifting Limiter Instrument of FDZX-1A Series
BWL-HL 型機械起重量限制器 BWL-HL-type mechanical load lifting limiter