Damper Spring This RFQ was sourced on www.MFG.com in USA for Coil Springs RFQ includes Cold Winding, Hot Setting, Shot Penning, Phosphated, Closed & Ground 300 deg. Buyer Information Industry Agriculture and Forestry City/Region Marshfield, Missouri Country USA RFQ RFQ Number 341516 Material Alloy Steel Material Grade Oil-Tempered, ASTM A229 Technical Specifications Category Coil Springs Dimensions Are you looking for suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) to provide manufacturing services for machine tool industry, automotive industry? For more information visit MFG.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your online quoting experience Coil Springs: Springs are mechanical devices, commonly made from tensioned steel, used to exert pressure or tension, resist tension, or retract after tension is applied. Springs can be flat or coiled.