1.Material:200,300,400series 2.Surface:bright shiny /soap coated/EPQ 3.standard:ASTM,DIN,EN,GB,JIS,etc 4. ... , Welding Wire, Spring Wire, Shaped Wire. Surface: bright shiny /soap coated/black/pickledStandard: GB,AISI,DIN,JIS,SUS,ASTMDiamter:0.5mm-40mm ...