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Lintratek China factory manufacturer supplies 1-5 band signal booster to enhance smart cell phone signal receipt, product verified by CE, FCC, certificate. 3g Gsm External Antenna Distributor, 4g Cell Phone Repeater , External Cell Phone Antenna , Mobile Phone Antenna ,Dcs Signal Booster . Lintratek have R&D Studio, Warehouse, Storehouse, Showroom, Headquarters Office.... We can supply you product certificate and testing report if you need. The product will supply to all over the world, such as Europe, America, Australia,Bulgaria, United States,Slovenia, Roman.Lintratek has been focusing on signal amplifiers for more than 20 years, specializing in the sale of 1-band 2-band 3-band 4-band 5-band.