... Factory .( 4 ) Slewing mechanism : equipped with four-speed winding motor and "Shengjian " brand, the quality is the same with ... Potain " .( 5 ) Luffing mechanism is double-speed cone rotor motor, so It’sneedn't refill gear lubricant or maintenance , and ... space capsule , toughened glass , widefield of vision , clear and safe ,auto wiper, air conditioner.( 9 ) Basic mast section : square strengthened ...