CONTROLLER OR CRANE EQUIPMENT BY RADIO CONTROL; COMPONENT: RADIOCONTROL; CHARACTERISTICS: TRANSMITTER AND RECEIVER; TRANSMITTER TO BUTTON, DOUBLE EFFECT BUTTON 6, SIMPLE EFFECT BUTTON 1 AND EMERGENCY BUTTON 1; RECEIVER WITH 13 OUTPUT RELAY, 2 RECHARGEABLE BATTERIES AND 1 CHARGER; EQUIPMENT: REMOTE CONTROL FOR CRANE BRIDGE OPERATION; MARK 1: IKUSI; MODEL 1: TM70 / 1.13