GB/T 21972.3-2023
起重及冶金用变频调速三相异步电动机技术条件 第3部分:YZP系列起重及冶金用变频调速三相异步电动机(离心风机冷却)(机座号100~400)
Technical conditions of variable frequency speed regulation three-phase asynchronous motors for hoisting and metallurgy Part3:YZP series frequency conversion speed regulation three-phase asynchronous motors for lifting and metallurgy(frame size 100~400)
GBT21972.3-2023, GB21972.3-2023