GB/T 21972.2-2023
起重及冶金用变频调速三相异步电动机技术条件 第2部分:YZP系列起重及冶金用变频调速三相异步电动机(轴流风机冷却)(机座号:100~400)
Technical conditions of variable frequency speed regulation three-phase asynchronous motors for hoisting and metallurgy Part2:YZP series frequency conversion speed regulation three-phase asynchronous motors for lifting and metallurgy(frame size:100~400)
GBT21972.2-2023, GB21972.2-2023