autoCAD using block reference, the underlay construction without pillars filled-Iota

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Service > autoCAD using block reference, the underlay construction without pillars filled

autoCAD using block reference, the underlay construction without pillars filled

Sensitive part of the blueprint paper has been in the role of ammonia in the color change or become light blue. Then blueprint rack. The photosensitive Diazo set a smoked drum map, called "smoked map", let the barrel of ammonia volatilized ammonia smoked, use of natural light or light irradiation sensitive blueprint paper, we must first print CAD drawings in a transparent or translucent paper, then put on a transparent tracing paper overlay draw a good drawing, called "blueprint." If the manual drafting, blueprint paper covering the base map (professional stationery shop on sale), this is called "base map", hand out the description you want to create a blueprint for the base map, which has been nice white or light blue line blue "blueprint", and not sensitive parts (graph) then becomes dark blue

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