Description: date on which the product was manufactured; Name: Date of fabrication
Description: Date from which the production and / or development process is completed or from which a service is provided completely; Name: Date of manufacture
Description: average speed given by the stroke length multiplied with the number of complete pumping cycles of the piston, plunger or piston attached to the diaphragm per minute (stroke per minute or pump crank speed); Name: piston velocity