Inquiry (采购产品): Project Hi! I′m Julio, a spanish student of mechanical engineering,who is doing the final project of the course about a device to fabricate compression coil spring. I need some information about the stress and force that I have to aplicate in the rod to blend it and get a plastic deformation, and how it′s depend on to achieve the elastic constant required. If you could help with this information I need, I′d be very pleased with you. Thank you for all and sorry for the mistakes I′ve made with my poor english. **** Hidden Message ***** Julio Sáez 23200 ESP Company: Student E-mail: saezkull@hotmail.com **** Hidden Message ***** saezkull@hotmail.com