GB/T 39714.1-2020
Plastics—Polytetrafluoroethylene(PTFE) semi-finished products—Part 1:Requirements and designation 塑料 聚四氟乙烯(PTFE)半成品 第1部分:要求和命名 |
GB/T 39577-2020
Technical requirements for access network—10-Gigabit-capable passive optical networks (XG-PON) 接入网技术要求 10Gbit/s无源光网络(XG-PON) |
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