We, Shanghai Tong-Feng Hardware Co., Ltd. is the associated company of Eastern Iron Enterprise Co., Ltd. in Taiwan. Floor Hinge (Concealed floor door closer) is our major product and we also manufacture other door hardware like patch fitting, door closer, door handle, and various hardware accessories. Our products can be applied to hotel, official building, stadium, hospital, construction site, shopping center, etc.At present, we have five factories in Shanghai, China, and the products occupied remarkable share of the domestic market.We passed TUV ISO 9001 and brand "GMT" is obtaining great prestige worldwide.Now we're looking for distributors. Welcome to visit our website: http://xxxxx