1 Both the renovation of the new machine and the transformation of the old machine overhaul lathe must undergo the same modification

2 Where is the difference between the transformation of the new machine and the transformation of the old machine overhaul lathe, and it is necessary to transform it thoroughly

3 The accuracy inspection of new machine transformation and overhaul machine tool transformation is an important item of inspection

4 Precision quality control for new lathe modification is in place

5 The accuracy inspection of the user's overhaul lathe transformation must be in accordance with the standard, and there can be no error

6 The quality important control points of overhaul lathe transformation and new machine transformation should be clarified