billma 发表于 2008-12-10 07:47

不可拆线BS插头，装保险管的小盖，上面需要标志吗，标哪些？

wwwabcd 发表于 2008-12-10 09:01

calibrated plug necessary

bs1363 发表于 2008-12-11 15:21

引用第20楼billma于2008-12-10 07:47发表的:
不可拆线BS插头，装保险管的小盖，上面需要标志吗，标哪些？

It should be marked with trade mark, company name or model number, etc which should be found in the plug's surface.
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