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2020-05-09Communication pipeli2020-05-09Communication pipeli2019-10-142019-09-262019-08-292019-08-192019-08-132019-08-08走访会员单位 倾听会员心声2019-05-242019-05-202018-04-16Shenzhen communication engineering construction industry association the preparatory committee for the first time2018-04-03The ministry of industry and information technology has encouraged the industry to aim at international standards for the revision of more than 1,800 
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