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TCVN 6721-2000 Safety of machinery Minimum gaps to avoid crushing of parts of the human body《机械安全 避免人体各部位挤压的最小间距》.pdf 8

TCVN 6721-2000 Safety of machinery Minimum gaps to avoid crushing of parts of the human body《机械安全 避免人体各部位挤压的最小间距》.pdfTCVN 6721-2000 Safety of machinery Minimum gaps to avoid crushing of parts of the human body《机械安全 避免人体各部位挤压的最小间距》.pdf

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TCVN 6720-2000 Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs《机械安全 防止上肢触及危险区域的安全距离》.pdf 15

TCVN 6720-2000 Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs《机械安全 防止上肢触及危险区域的安全距离》.pdfTCVN 6720-2000 Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs《机械安全 防止上肢触及危险区域的安全距离》.pdf

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TCVN 6523-2006 Hot-rolled steel sheet of high yield stress structural quality《高屈服应力结构级热轧薄钢板》.pdf 18

TCVN 6523-2006 Hot-rolled steel sheet of high yield stress structural quality《高屈服应力结构级热轧薄钢板》.pdfTCVN 6523-2006 Hot-rolled steel sheet of high yield stress structural quality《高屈服应力结构级热轧薄钢板》.pdf

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TCVN 6522-2008 Hot-rolled steel sheet of structural quality《结构级热轧薄钢板》.pdf 22

TCVN 6522-2008 Hot-rolled steel sheet of structural quality《结构级热轧薄钢板》.pdfTCVN 6522-2008 Hot-rolled steel sheet of structural quality《结构级热轧薄钢板》.pdf

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TCVN 6521-1999 Structural steels with improved atmospheric corrosion resistance《改进的抗大气腐蚀的结构钢 交货技术条件》.pdf 18

TCVN 6521-1999 Structural steels with improved atmospheric corrosion resistance《改进的抗大气腐蚀的结构钢 交货技术条件》.pdfTCVN 6521-1999 Structural steels with improved atmospheric corrosion resistance《改进的抗大气腐蚀的结构钢 交货技术条件》.pdf

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TCVN 6520-1999 Personal eye-protectors Synoptic tables of equirements for oculars and eye-protectors《个人用护目镜 目镜和护目镜技术要求简表》.pdf 11

TCVN 6520-1999 Personal eye-protectors Synoptic tables of equirements for oculars and eye-protectors《个人用护目镜 目镜和护目镜技术要求简表》.pdfTCVN 6520-1999 Personal eye-protectors Synoptic tables of equirements for oculars and eye-protectors《个人用护目镜 目镜和护目镜技术要求简表》.pdf

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TCVN 6519-1999 Personal eye-protectors Filters and eye-protectors against laser radiation《个人用护目镜 防激光辐射的滤光镜和护目镜》.pdf 13

TCVN 6519-1999 Personal eye-protectors Filters and eye-protectors against laser radiation《个人用护目镜 防激光辐射的滤光镜和护目镜》.pdfTCVN 6519-1999 Personal eye-protectors Filters and eye-protectors against laser radiation《个人用护目镜 防激光辐射的滤光镜和护目镜》.pdf

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TCVN 6305-3-2007 Fire protection Automatic sprinkler systems Part 3 requirements and test methods for dry pipe valves《消防 自动喷水灭火系统 第3部分 干式阀的要求和试验方法》.pdf 32

TCVN 6305-3-2007 Fire protection Automatic sprinkler systems Part 3 requirements and test methods for dry pipe valves《消防 自动喷水灭火系统 第3部分 干式阀的要求和试验方法》.pdfTCVN 6305-3-2007 Fire protection Automatic sprinkler systems Part 3 requirements and test methods for dry pipe valves《消防 自动喷水灭火系统 第3部分 干式阀的要求和试验方法》.pdf

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TCVN 6305-2-2007 Fire protection Automatic sprinkler systems Part 2 Requirements and test methods for wet alarm valves retard chambers and water motor alarms《消防 自动喷水灭火系统 第2部分 湿式报警阀.pdf 32

TCVN 6305-2-2007 Fire protection Automatic sprinkler systems Part 2 Requirements and test methods for wet alarm valves retard chambers and water motor alarms《消防 自动喷水灭火系统 第2部分 湿式报警阀.pdfTCVN 6305-2-2007 Fire protection Automatic sprinkler systems Part 2 Requirements and test methods for wet alarm valves retard chambers and water motor alarms《消防 自动喷水灭火系统 第2部分 湿式报警阀.pdf

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TCVN 6305-12-2013 Fire protection Automatic sprinkler systems Part 12 Requirements and test methods for grooved-end components for steel pipe systems《消防 自动喷水灭火系统 第12部分 元件钢管系统用带纹道尾端.pdf 23

TCVN 6305-12-2013 Fire protection Automatic sprinkler systems Part 12 Requirements and test methods for grooved-end components for steel pipe systems《消防 自动喷水灭火系统 第12部分 元件钢管系统用带纹道尾端.pdfTCVN 6305-12-2013 Fire protection Automatic sprinkler systems Part 12 Requirements and test methods for grooved-end components for steel pipe systems《消防 自动喷水灭火系统 第12部分 元件钢管系统用带纹道尾端.pdf

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