GB/T 25927-2010 Industrial-process measurement and control instrument panels—Methods of drawing the arrangement plan of panel area

GB/T 4728.2-2005 Graphical symbols for electrical diagrams—Part 2:Symbol elements,qualifying symbols and other symbols having general application GB/T 4728.3-2005 Graphical symbols for electrical diagrams—Part 3:Conductors and connecting devices GB/T 4728.4-2005 Graphical symbols for electrical diagrams—Part 4:Basic passive components GB/T 4728.6-2008 Graphical symbols for diagrams—Part 6:Production and conversion of electrical energy GB/T 4728.7-2008 Graphical symbols for diagrams—Part 7:Switchgear,controlgear and protective devices GB/T 4728.8-2008 Graphical symbols for diagrams—Part 8:Measuring instruments,lamps and signaling devices GB/T 4728.11-2008 Graphical symbols for diagrams—Part 11:Architectural and topographical installation plans and diagrams GB/T 14690-1993 Technical drawings—Scales GB/T 4457.2-2003 Technical drawing—Drawing presentation-General principles of leader lines and reference lines GB/T 4457.4-2002 Mechanical drawings—General principles of presentation-Lines GB/T 4457.5-2013 Mechanical drawings—Basic conventions for representing areas on cuts and sections GB/T 4457.5-1984 Mechanical drawings--Symbols for sections