skip to main content roll over image to zoom in apc power-saving back-ups pro 900, 900va, 230v br900gi discontinued on: 25 aug 2023 environmental performance of the product learn more sustainable by design energy efficient take-back transparency rohs/reach arrow2_down sustainability green ...
据唐朝李吉甫的《元和郡县志》卷34岭南道广州东莞县记载:“本汉博罗县地,晋成帝咸和六年于此置宝安县。”在东晋咸和六年为公元331年,在今天深圳南头置宝安县,这是东莞立县之始,但还没有叫东莞县,直到唐朝至德二年(公元757年),将宝安更名为东莞县,从宝安到东莞时长约426年。在广东设置东莞县是山东东莞县撤...