00/203638 DC : SEP 2000被替代
IEC 61811-52 ELECTROMECHANICAL ALL-OR-NOTHING RELAYS - PART 52: BLANK DETAIL SPECIFICATION - ELECTROMECHANICAL ALL-OR-NOTHING TELECOM RELAYS OF ASSESSED QUALITY - TWO CHANGE-OVER CONTACTS, 20 MM X 10 MM BASE
出版：British Standards Institution
专家解读视频
