问:哪里下载IEC 60072-2 1990 Dimensions and output series for rotating electrical machines - Part 2 Frame numbers 355 to 1000 and flange numbers 1180 to 2360答:请联系微信:siduwenku
IEC 60072-2 1990 Dimensions and output series for rotating electrical machines - Part 2 Frame numbers 355 to 1000 and flange numbers 1180 to 2360