1 MIG-MAG Guide – Lincoln Electric

2 Audel Welding Pocket Reference

3 Engineering Structural Welding

4 Location of Elements of a Welding Symbol

5 The Haynes Welding Manual

6 Welding Pipeline

7 Welding

8 Welding symbols on drawings

http://rapidshare.com/files/179576962/Welding_Handbook_Symbols_And__.rar