DE YUAN ENTERPRISE CO., LTD., which is proficient in researching and manufacturing special shape nuts, has his own professional team for D&R. Equipped with well-trained engineers, we can always obey the drawings designed by our customers to produce the special nuts they need. Obtained ISO 9001:2000 quality certification and several patents of producing process, it is our honor to meet demands form customers by quality products. Besides domestic sale, we also do exportation directly to North America , Europe and Australia. If you have any questions of special-shaped nuts, please feel free to contact us. We are quite willing to help you. It is really our pleasure to develop nice relationships with you and meet your needs.