Detailed offer Description AISD industry development Co.,ltd Is a professional manufacturer and exporter of hardware products specialized in sliding door, window and furniture hardware, such as sliding roller fittings, hinge, handle, door stopper and other accessories. Collecting technology ,profession and export ,our suspending and sliding door ,glass hanging sliding door ,sliding door , folding door ,walk-in wardrobe and relevant hardware fittings in excellent quality ,fashion ,durability ,easy installation ,our products gained unanimous affirmation and good appraisal from customers at home and oversea market . Our sliding rollers are well made of durable and noiseless nylon & improved nylon imported from Germany ,with special polishing process ,the rollers are smooth , W/O mould trace ,no sharp edge ,no leap , W/ fashionable designs ,our sliding roller fittings make your home decoration more perfect . The company always sticks to the tenet of " keep improving the best quality as conception, Zero-disfigurement as the goal seeking, Customer 's Satisfy as the Promise". Through technology innovation, we would like to provide you more competitive prices, first-class quality and superior service" base on the mutual benefit and a long business cooperation . OEM & ODM services are provided. Competitive Prices, good quality and timely delivery are promised.