This standard is a supplementary regulation to drawing method and dimensioning method. It is mainly used for simplified representation of bars, profiles and their sections on assembly drawings and detailed drawings, and also includes: ——Metal components composed of bars, profiles and their combined elements (including: bridges, frames, piles -lifting and transport equipment; -liquid storage tanks and pressure vessels; -lifts, elevators, conveyor belts, etc.
GB/T 4656.1-2000 history
2008GB/T 4656-2008 Technical drawings.Simplified representation of bars and profile sections
2000GB/T 4656.1-2000 Technical drawings-Simplified representation of bars and profile sections
1984GB/T 4656-1984 Representation of structural metal work
GB/T 4656.1-2000 Technical drawings-Simplified representation of bars and profile sections was changed to GB/T 4656-2008 Technical drawings.Simplified representation of bars and profile sections.