NP EN ISO 3767-2-1999 拖拉机.农用以及林用设备.花园或者草地上用到的机动设备.相关的控制标示.第2部分:农用拖拉机的符号标示(ISO 3767-2-1991)
Tractors,machinery for agriculture and forestry,powered lawn and equipment Symbols for controls and other display Part 2:Symbols for agricultural tractors and machinery(ISO 3767-2-1991)