TECHNOLOGY DRAWING
Pencils
Soft
Medium
Hard
Very hard
Other
Additional info
Propelling Pencil and Lead
Hardness
Diameter
Rubber
Protactor
Paper
Size
Formato DIN A,A0,A1,A2,A3,A4...
Weight
Finish
Rought or smooth
Opaque or translucent
Brilliant or dull
White or coloured
Technical pens
Ruler
Engineerś scald
Set of squares
45,90,45
30,90,60