our compang specilized in window and door hinges and window or door accessories.founed in 1989.we have abundant technicians who have been with the assembly and production of aluminum door and window accessory for many years. We carry out strict quality control according to the industry standard of the state to effectively ensure the quality of our products. We have obtained ISO9001:2000 certification. We present high, middle, and low class products with a complete variety of specifications. Our products are selling well all over the world due to durability, firmness, and novelty.