Standard No.:	GB/T 20257.1-2007
English Name:	Cartographic symbols for national fundamental scale maps - Part 1: Specifications for cartographic symbols 1:500 1:1000＆ 1:2000 topographic maps
Chinese Name:	国家基本比例尺地图图式 第1部分：1:500 1:1000 1:2000地形图图式
Chinese Classification:	A79    Map printing
Professional Classification:	GB    National Standard
Issued by:	AQSIQ; SAC
Issued on:	2007-10-17
Implemented on:	2007-12-1
Status:	superseded
Superseded by:	GB/T 20257.1-2017 Cartographic symbols for national fundamental scale maps-Part 1:Specifications for cartographic symbols 1 : 500 1: 1 000 & 1 : 2 000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 GB/T 20257.1-2017E Cartographic symbols for national fundamental scale maps�Part 1:Specifications for cartographic symbols 1�500 1�1 000 & 1�2 000 topographic maps
Superseded on:	2018-5-1
Superseding:	GB/T 7929-1995 Specifications for cartographic symbois 1:500 1:1000 100 topographic maps
Language:	English
File Format:	PDF
Word Count:	58000 words
Price(USD):	2140.0
Delivery:	via email in 1~10 business day

GB/T 20257的本部分规定了1:500、 1:1000、 1:2000地形图上表示的各种自然和人工地物、地貌要素的符号和注记的等级、规格和颜色标准、图幅整饰规格，以及使用这些符号的原则、要求和基本方法。