This standard specifies the type, basic parameters, model, requirements, test methods, inspection rules and markings, packaging, transportation and storage of signature stackers (hereinafter referred to as stackers). This standard applies to machines that perform accumulation counting or accumulation counting and bundling of signatures, newspapers, etc. that are discharged from rotary printing machines after folding.
GB/T 4728.2 Graphical symbols for electrical diagrams—Part 2:Symbol elements,qualifying symbols and other symbols having general application*, 2018-07-13 Update
GB/T 4728.3 Graphical symbols for electrical diagrams.Part 3:Conductors and connecting devices*, 2018-07-13 Update