中国ISC T25303 其他名称 T22020 对应标准 GB /T 1299-2014 工模具钢 Tool and mould steels 归类 工具钢 标签 塑料模具用钢 合金钢 说明 特性和用途:预硬型钢,相当于ASTM A681中的P20钢,其综合性能好,淬透性高,较大的截面钢材也可获得均匀的硬度,并且同时具有很好的抛光性能,模具表面光洁度高。 • ...
Children's vulnerability to toxic chemicals: a challenge and opportunity to strengthen health and environmental policy. Elsevier's Scopus, the largest abstract and citation database of peer-reviewed literature. Search and access research from the science, technology, medicin... PJ Landrigan,LR ...
http://go.microsoft.com/fwlink/?LinkId=246078 For more design considerations with Read Optimized Forms, click the following link to read the SDK topic: Design Considerations for Read Only Forms Build number and file names for this update rollup The build number of the update ...