General purpose gear units for petroleum, chemical, and gas industry services : API standard 677
General purpose gear units for petroleum, chemical, and gas industry services : API standard 677
Std 677 : API 677
- 3rd ed.
- Washington : American Petroleum Institute, API, 2006.
- vii, 81 p.
Normalización
Normas API
Normalización
Caja 19-A
Normalización
Normas API
Normalización
Caja 19-A



