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TCVN 4425-1987 Sandstone Method for the determination of titanium dioxide content《砂岩 二氧化钛含量的测定方法》.pdf 7

TCVN 4425-1987 Sandstone Method for the determination of titanium dioxide content《砂岩 二氧化钛含量的测定方法》.pdfTCVN 4425-1987 Sandstone Method for the determination of titanium dioxide content《砂岩 二氧化钛含量的测定方法》.pdf

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TCVN 4424-1987 Sandstone Method for the determination of zirconium dioxide content《砂岩 二氧化锆含量的测定方法》.pdf 6

TCVN 4424-1987 Sandstone Method for the determination of zirconium dioxide content《砂岩 二氧化锆含量的测定方法》.pdfTCVN 4424-1987 Sandstone Method for the determination of zirconium dioxide content《砂岩 二氧化锆含量的测定方法》.pdf

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6人阅读
TCVN 3916-1984 System for design documentation Original holders records《设计文件的系统 原始持有人记录》.pdf 8

TCVN 3916-1984 System for design documentation Original holders records《设计文件的系统 原始持有人记录》.pdfTCVN 3916-1984 System for design documentation Original holders records《设计文件的系统 原始持有人记录》.pdf

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TCVN 3915-1984 System for design documentation Technical design《设计文件的系统 技术设计》.pdf 6

TCVN 3915-1984 System for design documentation Technical design《设计文件的系统 技术设计》.pdfTCVN 3915-1984 System for design documentation Technical design《设计文件的系统 技术设计》.pdf

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TCVN 3914-1984 System for design documentation Primary design《设计文件的系统 初步设计》.pdf 6

TCVN 3914-1984 System for design documentation Primary design《设计文件的系统 初步设计》.pdfTCVN 3914-1984 System for design documentation Primary design《设计文件的系统 初步设计》.pdf

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TCVN 3912-1984 Calcium carbonate light Methods of test《酪酸钙 试验方法》.pdf 8

TCVN 3912-1984 Calcium carbonate light Methods of test《酪酸钙 试验方法》.pdfTCVN 3912-1984 Calcium carbonate light Methods of test《酪酸钙 试验方法》.pdf

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TCVN 3909-2000 Covered electrodes for manual arc welding of mild steel and low alloy steel Test method《低碳钢和低合金钢的手工电弧焊用涂敷焊条 试验方法》.pdf 14

TCVN 3909-2000 Covered electrodes for manual arc welding of mild steel and low alloy steel Test method《低碳钢和低合金钢的手工电弧焊用涂敷焊条 试验方法》.pdfTCVN 3909-2000 Covered electrodes for manual arc welding of mild steel and low alloy steel Test method《低碳钢和低合金钢的手工电弧焊用涂敷焊条 试验方法》.pdf

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6人阅读
TCVN 3106-1993 Fresh heavyweight concrete Method slump test《重质新浇混凝土 坍落度试验方法》.pdf 6

TCVN 3106-1993 Fresh heavyweight concrete Method slump test《重质新浇混凝土 坍落度试验方法》.pdfTCVN 3106-1993 Fresh heavyweight concrete Method slump test《重质新浇混凝土 坍落度试验方法》.pdf

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TCVN 3105-1993 Heavywight fresh concrete and concrete Sampling marking and curing test specimens《重质新浇混凝土和混凝土 取样 标记和固化试样》.pdf 10

TCVN 3105-1993 Heavywight fresh concrete and concrete Sampling marking and curing test specimens《重质新浇混凝土和混凝土 取样 标记和固化试样》.pdfTCVN 3105-1993 Heavywight fresh concrete and concrete Sampling marking and curing test specimens《重质新浇混凝土和混凝土 取样 标记和固化试样》.pdf

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TCVN 3104-1979 Low alloyed structural steel Marks and general technical requirements《低合金结构钢 标志和一般技术要求》.pdf 11

TCVN 3104-1979 Low alloyed structural steel Marks and general technical requirements《低合金结构钢 标志和一般技术要求》.pdfTCVN 3104-1979 Low alloyed structural steel Marks and general technical requirements《低合金结构钢 标志和一般技术要求》.pdf

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