Established in 1998, Tianjin Haoyuequan Hardware Products Co., Ltd. is a leading manufacturer, which has the right to import & export. Through several years' development, we possess advanced equipments & scientific management. As a large-scale private-operating enterprise, we possess one complete set of automatic sprigging equipment and one set of auto-electroplating equipment. Our products include self-tapping screws, self-drilling, drywall screws, fiberboards screws, common nails, roofing nails, wires. The scope of application are among the automobile industry, the building construction and decoration field, the bicycles parts, the wooden furniture, the electrical components and households etc. In the process of production, We have quality control system to guarantee standard of th...