... ,high quality ; 4.safe packing; 1. The detailed specification of Low Alloy Structural Steel : Steel GradeQ295A/Q295B / Q345A/Q345B / ... used for building factory, ordinary contraction and all kinds of engineering machinery, such as Drills, shovel, motor dump ... trucks, mining trucks, excavators, loaders, bulldozers, various types of cranes, coal mine hydraulic support and other mechanical equipment used ...