Spring Optical Communication is one of the largest and best male-female fiber attenuators manufacturers and suppliers with rich experience. Welcome to buy our high quality products or wholesale our customized fixed fiber optic attenuator, plug in type fiber optic attenuator, E2000 fiber optical attenuator, LC fiber optical attenuator, SC fiber optical attenuator, FC fiber optical attenuator, ST fiber optical attenuator in stock with our factory. Also, free sample is also available if necessary.