... ,20t,30t,40t,50t 3.OIML III Crane scale for port Introductions:It can be used with a variety of lifting ... equipment, widely used in metallurgy, nonferrous metals, railway, warehousing, port, mining etcFeatures:1.Universal intrument:QCS-XC-type meter is ... ,10,20,50Power supplyscaleDC12V/2Ah Nickel-cadmium battery, work on 24 hour full chargedIntrumentDC6V/2.5Ah Nickel-cadmium battery, work on ...