Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 20257.1-2017 |
Cartographic symbols for national fundamental scale maps—Part 1:Specifications for cartographic symbols 1︰500 1︰1 000 & 1︰2 000 topographic maps 国家基本比例尺地图图式 第1部分:1:500 1:1 000 1:2 000地形图图式 |
China National Standards 1:Specifications |
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GB/T 13477.1-2002 |
Test method for building sealants--Part 1:Specifications for test substrates 建筑密封材料试验方法 第1部分:试验基材的规定 |
China National Standards 1:Specifications |
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