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BS EN 60794-3-70-2016 光纖電纜室外電纜戶(hù)外光纜用于快速/多次部署的家庭規范 Optical fibre cables. Outdoor cab...2023-09-21

ETSI GR IP6 011-2018 Ipv6-Based 5G Mobile Wireless Internet; Deployment Of Ipv6-Based 5G Mobile Wireless In...2023-07-07

SY/T 6869-2012石油天然氣工業(yè).井下工具.井下套管閥Oil and gas industry—Downhole tool used in the—Downhole de...2022-06-16

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