... has different compression functionmore quantity will get more discount.Coil spring including TF,TL,TM,TH,TB,TR and so on ... bicycles, production equipments, furniture, etc.Product details1) the diameter of mould spring is from 0.2mm~60mm.2)strandard physical properties,such ... .4) customers' drawings and samples are welcome.Different kinds of mold springs could be supplied according to customer's samples ...