TY  - BOOK
AU  - Langton,John W.
TI  - Sheet metal working machinery
U1  - 621.9 
PY  - 1963///
CY  - London
PB  - Sir ISAAC Pitman
KW  - Sheet metal working machinery
KW  - Shears (Machine-tools)
KW  - Rolling
KW  - mill machinery
N1  - Includes index
ER  -