ASTM B733-22 金属上的自催化(无电解)镍磷合金标准规范.pdf文档页数:17文档大小:8.8MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principl
API RP 5A3-2023 套管、油管和管线管的螺纹脂推荐方法.pdf文档页数:77文档大小:24.23MB文档格式:pdf Thread Compounds for Casing TubingLine Pipe and Drill Stem Elements API RECOMMENDED PRACTICE 5A3 FOURTH EDITION FEBRUARY 2023 AP American Petroleum Institute
ASTM F3379-20 无人机系统(UAS)认可的公共安全远程飞行员培训的标准指南.pdf文档页数:8文档大小:3.61MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Deci