hat
10db, 20db EDFA chanèl plizyè moun ki pa marye-chanèl/pran blòk Fibre Edfa Raman manifaktirè ptik D' anplifikatè yo e faktori - bon jan kalite pwodwi - SOPO
eng
10db,20db EDFA Multi-channel Single-channel Gain Block Fiber Edfa Raman Optical Input Amplifier Manufacturers and Factory - Quality Products - SOPO