1.-SOLAR CELLS (20:57)

2.-SOLAR COLLECTORS (21:54)

3.-BOILER'S HEART (3:08)

4.-HARD SOLDERING (4:28)

5.-ELECTRON BEAM WELDING (3:55)

6.-WELDING HEAT (2:56)

7.-SHOT BLASTING (4:24)

8.-FUSED ZONE (4:08)