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ISO 10467-2018 Plastics piping systems for pressure and non-pressure drainage and sewerage. Glass-reinforced therm... attachment 国际标准
AWS B5.2-2001 Specification for the qualification of welding inspector specialists and welding inspector assistants attachment 国外标准
AWS B5.1-2003 Specification for the qualification of welding inspectors incorporates errata;second printing decemb... attachment 国外标准
AWS A2.4-2007 Standard symbols for welding,brazing,and nondestructive examination sixth edition attachment 国外标准
ASTM E92-2016 Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials attachment 国外标准
ISO 80369-7-2016 Small-bore connectors for liquids and gases in healthcare applications. Part 7:Connectors for int... attachment 国际标准
MSS SP-55-2011 Quality Standard for Steel Castings for Valves,Flanges,Fittings,and Other Piping Components. Visual... attachment 国外标准
ASME B31.4-2016 Pipeline Transportation Systems For Liquids And Slurries attachment 国外标准