1
1.
Phantom Line
2
2.
Section Line
3
3.
Cutting-plane Line
4
4.
Leader Line
5
5.
Hidden line (Thread Sym,)
6
6.
Hidden Line
7
7.
Center Line
8
8.
Exstention Line
9
9.
Break Line
10
10.
Visible Object Line
11
11.
Break line, (freehand)
12
12.
Dimension Line
13
1.
Short break
14
2.
Construction lines
15
4.
Center line
16
5.
Hidden line
17
6.
Object line
18
7.
Section line
19
8.
Long break
20
9.
Extension line
21
10.
Dimension line
22
11.
Leader lines