Shandong Tingyun Hardware Tools Co., LTD., founded in 2004, after 20 years of development and growth. The company specializes in the production of: hanging door rail, door wheel and door accessories products. Products are mainly used in: sliding door, folding door, side sliding door, cold storage insulation door, factory workshop door, hanging logistics production line. Main products: door rail, door wheel, sliding door metal pulley, slide rail. Over the years, we have continuously introduced advanced production equipment and modern management mode at home and abroad, and have a group of high-quality technical management personnel and technical development personnel, specializing in the design and development of various door hardware. The production of products strictly implement national standards, products sell well in more than ten countries, regions and all over the country. product