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QUALIF DEVELOPMENT CO., LTD is a professional manufacturer for building hardware and furniture hardware in China. With products under the registered brand “QUALIF”, by years of rich experience in producing and marketing, our products have been exported world-widely, and “QUALIF” has become a well-know brand throughout the world. Our main products are: Drawer slider, Nylon castor, Magnetic Catcher, SS window Hinge, Door hinge, Door Handle and Locks, as well as other accessories.