SJ/T 10177-1991 General specification for heat sink of colour television receivers

GB/T 1031-1995 Surface roughness parameters and their values GB/T 1031-2009 Geometrical Product Specifications (GPS)—Surface texture:Profile method—Surface roughness parameters and their values GB/T 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2421-1999 Environmental testing for electric and electronic products—Part 1:General and guidance GB/T 2421-2020 Environmental testing—General and guidance GB/T 2421.1-2008 Environmental testing for electric and electronic products—General and guidance GB/T 2421.2-2008 Environmental testing for electric and electronic products—Information for specification writers—Test summaries GB/T 3190-1996 Wrought aluminium and aluminium alloys—Chemical composition limits GB/T 3190-2008 Wrought aluminium and aluminium alloy——Chemical composition GB/T 3190-2020 Chemical composition of wrought aluminium and aluminium alloys GB/T 3199-1996 Wrought aluminium and aluminium alloy products—Packing, marking, transporting and storing GB/T 3199-2007 Wrought aluminium and aluminium alloy products—Packing, marking, transporting and storing GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 7423.1-1987 Heat sink of semiconductor devices Generic specification SJ 1267 SJ 1278-1977 Inspection methods appearance of metallic coatings and chemically treated layers GB/T 191-2025 Graphical symbols marking for handling and storage of packages