Data Search of Major Classification
| Major Class | Parent | Descriptor | Acronym | Synonym | Chinese Descriptor | Spanish Descriptor | Reference | Definition | 
| Product | Twin Screw Pump | 双缸螺杆泵 | La bomba de doble tornillo | 
| Major Class | Parent | Descriptor | Acronym | Synonym | Chinese Descriptor | Spanish Descriptor | Reference | Definition | 
| None defined at this time . . . | ||||||||