ASTM F961-20 外科植入物用35钴-35镍-20铬-10钼合金锻件的标准规范(UNS R30035).pdf文档页数:4文档大小:1.78MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in t
API STD 546-2022 燃烧后氮氧化物 (nox) 控制 - 用于一般炼油和石化服务中的燃烧设备.pdf文档页数:267文档大小:32.66MB文档格式:pdf Brushless Synchronous Machines- 500 kVA and Larger API STANDARD 546 FOURTH EDITION MAY 2022 AP American Petroleum Institute Am
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ASTM G47-20 确定2XXX和7XXX铝合金产品应力腐蚀敏感性的标准试验方法.pdf文档页数:6文档大小:2.89MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision