一般用粗实线表明补充加工部位结构，至于形位公差、表面粗糙度、尺寸等要按

Usually a thick solid line indicates that portion additionally processed structure, as international predetermined geometric tolerance, surface roughness, size and the like designated Yaoan mechanical drawing format; so the original contour portion using the general casting thin solid line. FIG additionally processed check box drawings JD0902-7102, the front cover additionally processed reference map search JD0902-7103.

Generally with thick solid lines to indicate the structure of the supplementary processing site, as to the shape tolerance, surface roughness, size, etc. should be in accordance with the international requirements of mechanical drawing format, the contours of the original part of the general casting, etc. are using fine solid wire. Box supplementary processing figure with figure JD0902-7102, front cover supplementary processing tuchar attached to figure JD0902-7103.

Generally, thick and solid lines are used to indicate the structure of the supplementary processing parts. As for the form and position tolerance, surface roughness and dimension, they shall be indicated according to the international format of mechanical drawing; the contour of the original part of the general casting shall be thin and solid lines. Refer to figure jd0902-7102 for box supplementary processing drawing and figure jd0902-7103 for front cover supplementary processing drawing.<br>