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ONORM A 2134-1991 Geometrical drafting triangles 45for educational purposes marking of conformity《教学用几何绘图45度角三角板 合格标识》.pdf
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ONORM A 2133-1984 Moveable drawing boards for educational purposes《教学用可移动绘图板》.pdf
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NS 964-1972 Hexagon bolts - Unified - Semifinished - Wholly threaded - UNC threads 1 4 to 1 1 2 .pdf
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NS 963-1972 Hexagon bolts - Unified - Semifinished - UNC threads 1 4 to 1 1 2 .pdf
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26
NS 9600-4-2010 Rope access techniques - Part 4 Requirements to and certification of suppliers of services.pdf
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NS 9600-3-2010 Rope access techniques - Part 3 Requirements to and certification for training and assessment facilities.pdf
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27
NS 9600-2-2010 Rope access techniques - Part 2 Admission criteria and syllabus for training.pdf
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NS 5364-1982 Machine tools - Center holes 90 degrees - Dimensioning.pdf
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NS 5347-1977 Machine taper pin reamers with Morse taper shanks.pdf
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NS 5346-1977 Machine taper pin reamers with parallel shanks.pdf
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