... steel spring wireWire kindsStainless steel tiny wire/argon arc welding wire/spring wire/cold heading wire/hydrogen annealed wire/gas-shielded welding wire(MIG)/submerged arc welding wire/wire rope etcGradeAISI201,201,304,304L ... ,317L,321,347H,409,409L,410S,420,430,630,631(17-4ph,17-7ph) etcStandardAISI/ASTM/SUS/GB/DIN/EN/BS/ GB ...