Safety valves for flow shutoff in well construction 009-785
建井中关断流体用安全阀
Chinese
建井中关断流体用安全阀
English
Safety valves for flow shutoff in well construction
Spanish
Válvulas de seguridad para el corte de flujo en la construcción de pozos
- Term ID
- 009-785
- Class
- 09
- Type
- Goods
- Status
- Active · added, not since modified (A)
- Effective date
- 2001-06-01
- Version
- 08-2002
Official English notes
Note that manually operated metal valves are in Class 6; valves being machine parts and engine valves for vehicles and machinery are in Class 7; valves for plumbing and heating and cooling installations are in Class 11; rubber, manually operated valves are in Class 17 and plastic, manually operated valves are in Class 20.