Dongguan Chengji Xinrui Trading Co., Ltd. is a company engaged in the sales, leasing, maintenance and measurement of instruments. A company specializing in recycling. Mainly dedicated to world-renowned brands such as Agilent, HP, Anritsu, Advantest, R/S, IFR/MARCONI, and Sunshine, including network analyzers, spectrum analyzers, comprehensive testers, digital communication testers, high-frequency signal sources, high-frequency oscilloscopes, modulators, electroacoustic testers, and audio analyzers Sales and leasing of second-hand high-frequency communication test instruments, etc. Among them, the second-hand instrument sales business can save 30% to 65% of the costs for each manufacturer.