GB/T985.1-2008isaChinesenationalstandardthatprovidesrecommendedgroovedesignsforvariousweldingmethods,includinggaswelding,shieldedmetalarcwelding,gas-shieldedwelding,andhigh-energybeamwelding.Thisstandardservesasatechnicalguidelinetoensureproperjointpreparationandweldingqualityinindustrialapplications.Itspecifiesgrooveshapes,dimensions,andpreparationrequirementssuitablefordifferentmaterialthicknessesandweldingprocesses.Byfollowingthesestandardizedgroovedesigns,weldersandengineerscanachieveoptimalweldpenetration,strength,andefficiencywhileminimizingdefects.Thestandardisparticularlyusefulformanufacturing,construction,andrepairworkwhereconsistentweldingqualityisessential.ItsEnglishversionfacilitatesinternationalunderstandingandadoptionoftheserecommendedpractices.