Pynciau a Argymhellir O fewn eich chwiliad
Pynciau a Argymhellir O fewn eich chwiliad
Metalurgia
Metallurgy
132
Welding
40
Soldadura
33
Metallurgical technology
31
Tecnologa̕ metalr͠gica
29
Technology
26
rhagor ...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20