TY  - BOOK
ED  - ASTM
TI  - Standard specification for common requirements for steel flanges, forged fittings,valves,and parts for piping applications
U1  - NT ASTM A961/A961M-20 
PY  - 2020///
CY  - Pensilvania
PB  - ASTM
KW  - NORMAS TÉCNICAS
KW  - TUBERÍAS
KW  - A961/A961M
KW  - 2020
ER  -