1 ISO9001 Certified 2 Material: Spring Steel(60Si2MnA) 3.Widely used in China Mainland 4. ... of Railway Fastening System, including Spring Clips, Rail Spikes, Washers, Baseplates, Rubber Pads, Nuts, etc.Typical Spring Clips Production Process 1. Cutting2 ... solved before they can impact delivery or product cost. Railway Spring Clip Company Basic InformationCompany Name: Green Casting Technology Co., ...