The load-type guardrail drilling rig is a piling drilling machine widely used in highway, railway, construction, hydropower, port and other construction projects. In recent years, Hengwang has both internal and external repairs in the production of pile drivers, and has successively obtained structural parts and shifting gears. The major breakthrough in the quality of the optional parts of the box, the sales of the products continued to rise, and it was at the forefront of the industry in product technology and product service.