To produce road-brim stones 500x600(mm) and change model with different colors. The products are of standard size and beautiful shape, mainly for railway road construction, multi-used, to satisfy all needs of the market, lower the investment risk to the largest extent. Use structure of metals and quality steels-board with high-density and little activity-connection. Use liquid-pressure transmission, working steadily and safe, easy to operate, close structure and convenient fixation. our factory acts precisely on “first quality, first reputation, first customer”, setting “reputation is more important than products, satisfaction of our customers is our final aim” as selling concept.