As one of the best quality China SAE flange manufacturers and SAE flange suppliers, Younglee Metal Flange Factory Co., Ltd was started in the year 1996. The factory`s former name is Changsha Hydraulic Machinery Parts Factory Co., Ltd. We had been focused in producing hydraulic flanges and forged fittings including SAE flanges, ISO 6164 square flanges, and forged fittings for more than 20 years.