nable clip,SKL clip,e-clip,W-clip.DTV-II rail clip material metal we supply: nable clipMaterial: 60Si2Mn, 38Si7, 60Si2CrHardness Rockwell ... :1) I- clip, II- clip, III- clip, IV- clip, V- clip, VI- clip, VII- clip, VII-I clip, E 2007 AV, Anti creeper, PR clip, Anchor clip, nikka rail clip, spring clip2 ...