GB/T 21972.1-2008 standard english preview version PDF file download
GB Standard Code
GB/T 21972.1-2008
Standard Category
China National Standards
GB Standard English Title
Technical specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical application - Part 1:YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applicati
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