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What is the difference between Heidelberg printer CD 102-4 and Heidelberg SM- 102-4P and Heidelberg GTO printer? Can all captains share it?

There is not much difference between Heidelberg printer CD 102-4 and Heidelberg SM- 102-4P. CD 102 indicates that it is suitable for thick paper printing, and SM 102 is suitable for thin paper printing. Captain can share. Heidelberg GTO printing machine is a printing machine made in small 8, which is very different from the previous two models. The captain should not share it. This also depends on people. Some masters can operate these machines.