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TCVN 4905-1989 Television receivers Sensory tests Guidelines《电视接收机 感官检查 指南》.pdf 16

TCVN 4905-1989 Television receivers Sensory tests Guidelines《电视接收机 感官检查 指南》.pdfTCVN 4905-1989 Television receivers Sensory tests Guidelines《电视接收机 感官检查 指南》.pdf

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TCVN 4399-2008 Steel and steel products General technical delivery requirements《钢和钢制品 交货的一般技术要求》.pdf 20

TCVN 4399-2008 Steel and steel products General technical delivery requirements《钢和钢制品 交货的一般技术要求》.pdfTCVN 4399-2008 Steel and steel products General technical delivery requirements《钢和钢制品 交货的一般技术要求》.pdf

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TCVN 4398-2001 Steel and steel products Location and preparation of samples and test pieces for mechanical testing《钢和钢制品 机械试验用样品和试件的定位与制备》.pdf 21

TCVN 4398-2001 Steel and steel products Location and preparation of samples and test pieces for mechanical testing《钢和钢制品 机械试验用样品和试件的定位与制备》.pdfTCVN 4398-2001 Steel and steel products Location and preparation of samples and test pieces for mechanical testing《钢和钢制品 机械试验用样品和试件的定位与制备》.pdf

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TCVN 4397-1987 Safety regulations for ionizing radiations《电离辐射的安全法规》.pdf 79

TCVN 4397-1987 Safety regulations for ionizing radiations《电离辐射的安全法规》.pdfTCVN 4397-1987 Safety regulations for ionizing radiations《电离辐射的安全法规》.pdf

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TCVN 4396-1986 Non-destructive testing Method of magnetic particle testing《无损检测 磁粉检测的方法》.pdf 14

TCVN 4396-1986 Non-destructive testing Method of magnetic particle testing《无损检测 磁粉检测的方法》.pdfTCVN 4396-1986 Non-destructive testing Method of magnetic particle testing《无损检测 磁粉检测的方法》.pdf

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TCVN 4394-1986 Non-destructive testing Classification and evaluation of welding seam defects by means of radiogrammes《无损检测 通过射线图像对焊缝缺陷进行分类和评估》.pdf 15

TCVN 4394-1986 Non-destructive testing Classification and evaluation of welding seam defects by means of radiogrammes《无损检测 通过射线图像对焊缝缺陷进行分类和评估》.pdfTCVN 4394-1986 Non-destructive testing Classification and evaluation of welding seam defects by means of radiogrammes《无损检测 通过射线图像对焊缝缺陷进行分类和评估》.pdf

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TCVN 3879-1983 Textile industry Technology of knitted fabrics Terminology and definitions《纺织工业 针织物的工艺 术语和定义》.pdf 6

TCVN 3879-1983 Textile industry Technology of knitted fabrics Terminology and definitions《纺织工业 针织物的工艺 术语和定义》.pdfTCVN 3879-1983 Textile industry Technology of knitted fabrics Terminology and definitions《纺织工业 针织物的工艺 术语和定义》.pdf

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TCVN 3872-1983 Ferromanganese Method for the determination of silicon content《锰铁 硅含量的测定方法》.pdf 10

TCVN 3872-1983 Ferromanganese Method for the determination of silicon content《锰铁 硅含量的测定方法》.pdfTCVN 3872-1983 Ferromanganese Method for the determination of silicon content《锰铁 硅含量的测定方法》.pdf

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TCVN 3871-1983 Ferromanganese Method for the determination of sulphur content《锰铁 硫含量的测定方法》.pdf 7

TCVN 3871-1983 Ferromanganese Method for the determination of sulphur content《锰铁 硫含量的测定方法》.pdfTCVN 3871-1983 Ferromanganese Method for the determination of sulphur content《锰铁 硫含量的测定方法》.pdf

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TCVN 3870-1983 Ferromanganese Method for the determination of carbon content《锰铁 碳含量的测定方法》.pdf 7

TCVN 3870-1983 Ferromanganese Method for the determination of carbon content《锰铁 碳含量的测定方法》.pdfTCVN 3870-1983 Ferromanganese Method for the determination of carbon content《锰铁 碳含量的测定方法》.pdf

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