The Firing Line Forums - View Single Post - Ball valves with twisting wing nuts loading system

helike1 · September 5, 2012, 03:31 AM

Good morning
Last August 29, I published " unusual prototypes".
James K suggested it may be french.
I need your help again.
Who can help me to find any picture of these kind of loading system?.
Where can I find any web or any book specialized ?.
I want to know how old it is .
Thank you everybody and excuse me again.

September 5, 2012, 03:31 AM	#1
helike1 Junior Member Join Date: March 7, 2012 Posts: 4	Ball valves with twisting wing nuts loading system Good morning Last August 29, I published " unusual prototypes". James K suggested it may be french. I need your help again. Who can help me to find any picture of these kind of loading system?. Where can I find any web or any book specialized ?. I want to know how old it is . Thank you everybody and excuse me again.