Good quality comes 1st; assistance is foremost; business enterprise is cooperation" is our business enterprise philosophy which is regularly observed and pursued by our company for Gge-20ea Series 1550nm Erbium-Doped Outdoor 1550nm Edfa, Cable Modem Headend , catv edfa , Adjacent Channel Modulator ,Cable Tv Headend . We're devoted to supply skilled purification technology and options for you personally! The product will supply to all over the world, such as Europe, America, Australia,Bangalore , Maldives ,Czech Republic , Sacramento .To win customers' confidence, Best Source has set up a strong sales and after-sales team to deliver the best product and service. Best Source abides by the idea of "Grow with customer" and philosophy of "Customer-oriented" to achieve cooperation of mutual trust and benefit. Best Source will always stand ready to cooperate with you. Let's grow together!