标题: DIN 7349:2009 Plain washers for bolts with heavy clamping sl [打印本页] 作者: 大新 时间: 2012-4-4 13:32 标题: DIN 7349:2009 Plain washers for bolts with heavy clamping sl DIN 7349:2009 Plain washers for bolts with heavy clamping sleeves作者: applelin1017 时间: 2012-7-25 13:24
是老版的 没有新版的
