YBZS系列起重用隔爆型双速三相异步电动机 技术条件
Technical specification for YBZS range of flame-proof double-speed three-phase induction motors for crane application
2005-02-14
JB/T 7840-2005
YZRW系列起重及冶金用涡流制动绕线转子三相异步电动机 技术条件
Technical specification for YZRW range of eddy-current braking wound-rotor three-phase induction motors for crane and metallurgical application