... 4.Professional manufactur Stainless steel wire Stainless Steel Spring Wire (SPR)Application: Springs Steel grade: 302, 304, 316, 130M, 304ES, 201CU, 631, ... for rolling various precision springs. Stainless Steel EPQ Wire(EPQ)Steel grade: 304, 316, 304ES, 200CU-3( Ni: 0.6-0 ... rivets, volleyball nails Steel grade: 304, 304HC, 304HCT, 304HC3, 316, 201CU Wire size: 0.8-8.0mm Surface: Dull, Bright Temper: 1 ...