论文部分内容阅读
全国紧固件标准化技术委员会日前发布了《第三批经确认的紧固件制造者识别标志》的公告。根据GB／T３０９８．１（等同采用ISO８９８－１）和GB／T３０９８．２（等同采用ISO８９８－２）紧固件机械性能标准的规定，对所有性能等级的六角头螺栓和六角螺母以及内六角螺钉等，螺
The National Fastener Standardization Technical Committee recently announced the announcement of the “Third Batch of Confirmed Fastener Manufacturers Identification Signs”. According to GB/T 3098.1 (equivalent to ISO 898-1) and GB/T 3098.2 (equivalent to ISO 898-2) fastener mechanical performance standards, for all performance levels of hex head bolts and hex nuts and socket head cap screws Etc.