Inquiry (采购产品): custom launch spring I need a compression spring powerful enough to launch a 186 gram ball vertically 25 feet. The OD needs to be 2" and the free length 12"-16". All other specs can be anything. Thank you for your help. **** Hidden Message ***** Tyler Thorstrom 919 S. Artistic Circle Springville, UT 84663 USA Company: Damsel in this Dress Phone: 8014943810 E-mail: thor_tyler@hotmail.com **** Hidden Message ***** thor_tyler@hotmail.com
