Grove GMK 5250L mobile crane

Grove GMK 5250L mobile crane  Features:  .All body work reference Grove GMK5250L,and the hood can disassemble from chassis.  .Easy to separate chassis and superstructure  .Drive: 1 XL motor, steering: 1 M motor, 4 axles steered, outrigger extension: 1 M motor, outrigger Lift: 1 L motor  .Can separate to superstructure, boom, cabin, counterweight(with battery box)  .3 stage boom telescope extend and retract by string line  .3 stage boom telescope can extend and retract in any angle  .Brick actuator work with string line  .The boom max angle is 82 degree (like the real crane)  .The counterweight is detachable  .Additional manual function: cabin lift  .Boom Luff: 1 L motor, boom Telescope: 1 L motor, winch: 1 M motor,slew: 1 M motor  .The building blocks set is composed of high-quality particles for excellent hand feel, coordination and experience, either too loose or too tight. A portable electronic USB flash disk manual is provided, which allows easy assembling in line wit