Guerlain Electrical Materials Co., Ltd. is a professional modern industrial and construction installation materials production and sales enterprises, over the years, the company with its spirit of innovation has always been the same, always leading the trend of the development of the industry, our products are innovative and state-of-the-art, wide range , widely used in electrical wiring, pipe installation and steel sectors, have been successfully applied to a number of major projects, reputation for excellence in their respective fields. Deduction code applied to the the duct flange fixed connection. Buckle code, duct buckle codes, Shanghai deduction code, the wind pipe hook code, deduction code, duct deduction code, deduction code, Shanghai duct hook code