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NS 3481-1989 Soil investigation and geotechnical design for marine structures.pdf
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NS 3469-1990 General principles on reliability for structures - List of equivalent terms.pdf
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NS 3466-2009 Environmental programme and follow-up system in the construction sector.pdf
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3
NS 1761-1974 Welding neck flanges - Nominal pressure PN 6.pdf
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NS 1756-1978 Compression fittings for copper tubes for sanitary engineering and general use.pdf
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NS 1755-1980 Valves for water installations - Underground screw down stop valves of leaded brass - Female threaded ends R 3 4 to R 2 - Non-rising stem non-metallic seal - Nominal p.pdf
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NS 1754-1980 Valves for water installations - Underground gate valves of leaded brass - Female threaded ends R 3 4 to R 2 - Non-rising stem non-metallic seal - Nominal pressure PN .pdf
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4
NS 17525-1988 Aluminium casting alloys - Alloy AlSi7MgFe.pdf
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3
NORVEN 582-1971 《镀锌管的涂层重量的测量》.pdf
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NORVEN 562-1971 《鹤嘴锄》.pdf
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