TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Specification for fire test for check valves: API Specification 6FD
U1  - Caja 3-2 
PY  - 1995///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Válvulas
KW  - Normalización
KW  - Normas API
ER  -