According to Hi CLOUD in
1. the old height is 2928 mm .When installing a new piece of work into. The new level will be higher than the previous
2. The new elevation higher than about 8 mm, we have downgraded to the level of the existing old installation, the distance will be lower than in drawing 8. mm
3. DRAWING DETAIL 5 as the input L-75X75X6 if it is put HEX.BOLT M20 to 4 images can not be put together you will see File attached to it.