HereisabriefintroductionfortheEnglishtranslatedversionofGBT6728-2002"Dimensions,Shapes,MassesandTolerancesforCold-FormedHollowStructuralSections":TheEnglishtranslatedversionofGBT6728-2002providesthetechnicalspecificationsforcold-formedhollowstructuralsectionsusedinconstructionandengineeringapplications.Thisstandarddefinesthedimensions,cross-sectionalshapes,theoreticalmasses,andpermissibledeviationsforsquare,rectangular,andcircularhollowsectionsmanufacturedthroughcold-formingprocesses.Itservesasakeyreferenceformanufacturers,engineers,andinspectorstoensureproductqualityandconsistencyinstructuralapplications.Thestandardcoverstolerancesforoutsidedimensions,wallthickness,straightness,andothergeometriccharacteristicscriticalforstructuralperformance.ThistranslationaimstofacilitateinternationaltradeandtechnicalexchangebymakingtheChinesenationalstandardaccessibletoglobalindustryprofessionals.TherequirementsalignwithcommoninternationalpracticeswhilereflectingChina'sspecifictechnicalprovisionsforcold-formedsteelsections.ThedocumentmaintainstheoriginaltechnicalcontentandnormativerequirementsoftheChinesestandardwhilepresentingtheminEnglishforwiderusability.ItisintendedforusealongsidetheoriginalChineseversionwhereofficialinterpretationisrequired.
