Name: Spring washer Type : Fe6 /ULS6/ULS7.. Raw material : 65Mn./ 0Si2Mn/Q235/45# Type : Fe6 /ULS6/ULS7.... all kinds available with drawings and samplesRaw material : 65Mn./ 0Si2Mn/Q235/45#Surface :black etc. Commodity:Spring washersType:from 3/4-1Raw material:65Mn, 60SizMn, 70#...Surface:Black, Zinc, Plain, HDG…we main supply as follows:1.rail clip,e,skl clip,elastic rail clip,tension clamp2. ...