Widely used R clip: 1,Material:carbon steel 2,Pass ISO9001,14001 3, ... certificate 4,Price:USD0.01~1.0 Production Name:metal r clips MaterialCarbon steel,stainless steel,alloy steel,Inconel,Titanium, Nimonic 90 ... per year5.100% guarantee the uncondition return or reproduction for quality problems6.Free design for all kinds of springs,wire forms7 ...