overhead crane with mechanical multivalve clamshell grab and bucket excavator in the hot dusty of industrial site

and background bucket cabin cargo clamshell crane digging dirty dredge dredging dross dump dusty ecology equipment excavator exploiting factory foggy gear grab grapple gripper hardware haze heap heavy hot industrial industry loader machine machinery mechanical mechanism mechanization metallurgy mining mist multivalve outdoors overhead plant pollution scene shop site smog transport view work