TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Cold working thread roots with CNC lathes for rotary shouldered connections: API Technical Report 7CR
U1  - Caja 4 
PY  - 2020///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normas técnicas
KW  - Normas API
ER  -