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ISO 10303-507 2001 Industrial automation systems and integration — Product data representation and exchange — Part 507 Application interpreted construct Geometrically bounded surface.pdf
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ISO 6826 2022 Reciprocating internal combustion engines — Fire protection.pdf
ISO 11970 2016 Specification and qualification of welding procedures for production welding.pdf
ISO 12643-1 2023 Graphic technology — Safety requirements for graphic technology equ.pdf
ISO 4063 2023 Welding, brazing, soldering and cutting — Nomenclature of processes and reference numbers.pdf
GB-T 15454-2009 工业循环冷却水中钠、铵、钾、镁和钙离子的测定 离子色谱法.pdf
GB-T 17704.1-1999 信息技术 信息交换用130 mm一次写入盒式光盘 第1部分 未记录盒式光盘.pdf
GB-T 15751-1995 技术产品文件 计算机辅助设计与制图 词汇.pdf
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GB-T 22902-2008 纸浆 丙酮可溶物的测定.pdf
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