5
6
8
10
12
14
16
18
20
Aluminium Alloy
1
2
3
4
5
6
8
10
12
14
16
Brass
1
2
3
4
5
6
8
10
12
Copper
1
2
8-9
14
4.5-5.5
15
3.5-4.2
15
1.6-2
15
1-1.2
16
0.7-1
16
0.5-0.7
18
0.5
20
0.3
20
30-40
6000
N2
12
20-30
12
16-18
14
8-12
14
5-7
14
3.5-4.2
16
1.5-2.2
16
1-1.5
18
0.6-0.8
18
0.4-0.6
18
0.3-0.4
20
30-40
6000
N2
12
20-25
12
14-18
14
9-12
14
5-6
14
3.5-4.5
16
1.5-2
16
0.8-1.2
16
0.5-0.8
18
25-30
6000
O2
5
13-16
5
    "