Changyun is a professionalImp & Exp company with advanced machinery, equipment of FRP Panel, FRP Panel, chemical and packing material. Most of our sub-company are the leaders of FRP line, FRP Panel and chemical and packing materials. Our company passed ISO9000: 2000 International Quality System certification and CE certification, SGS, And Reach.

Shenzhen Tsinghua Video Electronics Technology Co., Ltd. Develops, sells and integrates high-tech industrial companies. The products include large-scale photoelectric automatic tracking pan/tilt, intelligent pyrotechnic analysis laser night vision device, laser ranging, thermal imaging full-screen temperature measurement system, aircraft and The drone gyro stabilizes the pod, the ship, and the ship-borne photoelectric automatic tracking and collecting the large-scale intelligent photoelectric equipment such as the cloud platform. The company is committed to providing customers with reliable, effective, high-quality products, as well as good pre-sales, sales, after-sales service, and has achieved excellent market performance, winning the praise of all sectors of society. The company now has a professional staff with excellent academic quality, high quality, high cooperation and innovative spirit, which provides reliable guarantee for the company's technical capabilities and service standards, and can provide OEM, agency, distribution and other forms of cooperation.

Quanzhou joint-tech Mobile Repeater Produce & Wholesale Signal Booster. Mobile Booster Include: GSM 900 Mobile Booster, GSM 1800 Mobile Booster & GSM 2100 Mobile Booster, Dual Band Mobile Repeater: GSM 900/1800, GSM 900/2100 Mobile Repeater, GSM 900/1800/2100 Triband Mobile Signal Booster.