TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Steel globe valves-Flanged and butt-welding ends, bolted bonnets: API Standard 623
U1  - Caja 18-B 
PY  - 2021///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normalización
KW  - Normas API
ER  -