... -65mm 3.quick delivery,ISO9001, 14001 ROHS 4.free sample compression spring Material:stainless steel,carbon steel,alloy steel Applications: Automotive ... ,not be broken.The spring surface is creamy feel flexiblity uniform,line state information,good heat resistance.wire dia:0.15 ... , electrical appliances, telecommunication, communication, aviation, space and other civil fields compression spring