JIS B 9126-2:2012 农林拖拉机和机械,草坪和园艺动力机械.驾驶员操纵符号和其他符号.第2部分:农用拖拉机和机械符号
Tractors, machinery for agriculture and forestry, powered lawn and garden equipment -- Symbols for operator controls and other displays -- Part 2: Symbols for agricultural tractors and machinery