ASTM E1728 E1728M-20 使用擦拭取样方法收集沉淀粉尘样品进行后续铅测定的标准做法.pdf文档页数:5文档大小:2.61MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in
ASTM E3236 E3236M-20 国土安全或公共安全设施用防弹屏障的标准规范.pdf文档页数:13文档大小:4.29MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision
ASTM F2482 F2482M-21 负载指示外螺纹紧固件的标准规范.pdf文档页数:5文档大小:5.31MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles
JIS B 1509-2020 滚动轴承 带定位卡环的径向轴承 尺寸 几何产品规格(Gps)和公差值.pdf文档页数:30文档大小:23.26MB文档格式:pdf JIS 耘軸受一止輪付亏沙了儿軸受一 寸法,製品幾何特性仕樣(GPS) 及公差值 JISB1509:2020 (JBIA) 合和2年3月23日改正 日本產業標準調查会審