Our factory developed a new kind of strong fastener registered with the trademark of "Yongqiang Brand" in the eighties. The products include high grade expansion bolt, expansion bolt for elevator use, Drop-in Anchors, High strength Draw-Expansion Anchor bolts, stainless steel tension expansion bolt and hexagonal bolt, high strength hex part, etc. The products are widely used as fasteners in modem architectural glass panel, building and hotel decoration, and electromechanical installations. "Yongqiang Brand" serial products possess national registered trademark, national patent, comply with international ISO9001:2000 standard and have obtained the certification by the Provincial Standard Part Quality Bu reau. The products of our factory have reached an annual production and sales volume of 8000,0000 sets and are sold to places all over the country and exported to many countries. Frequent enterprise users include the subway installation company, famous elevator factory, large construction installation company, power supply, post and telecommunications companies, Jingguang expressway installation, provincial academy of architectu ral science, construction bureau, new airport etc. "Yongqiang Brand" serial products have the merits of beautiful and practical, small volume, huge load, wide range application, precise and fast use and installation. Using this series can: substitute for anchor screw, cancel preembedded part, increase working efficiency and installation quality, substantially shorten the construction period, and achieve curtain economic result by adopting this product for installation. Our factory always pursues to improve the production process, implement overall quality management, so as to make the products stable and reliable, and increase the satisfaction level of the customers. Our factory will wamly serve the vast customers and merchants as always.