GANTRY CRANE LOAD-LIMITED PROTECTOR DIRECT-DISPLAY ELECTRONIC SLING SCALE WIRELESS TELECONTROL ELECTRONIC SLING SCALE MULTIFUNCTIONAL CRANE ALUMINIUM-PRODUCING ELECTRONIC SCALE DOUBLE-HOOK ELECTRONIC SLING SCALE GRAB BUCKET ELECTRONIC SCALE OF HARBOR DOOR-MACHINE ELECTRONIC HANGING-RAIL SLING SCALE INDUSTRIAL WEIGHING AND MIXTURE CHARGING CONTROL SYSTEM ELECTRONIC PLATFORM SCALE BELT BALANCE