Standard: DIN 17223-1, DIN EN 10270-1, JIS G 3521-1991, GB 4357-89 1.Steel Grade/Material: 45#, 42A, 42B, 60#, 65 ... #, 65Mn, 70#, 72A, 72B, 80#, 82A, 82B, 1006, 1008, Q195, Q235, 12L142.Diameter ... .03≤0.20≤0.20≤0.2565Mn0.650.200.70-1.00≤0.03≤0.03≤0.20≤0.20≤0 ... : 0086-523-86808039Mob: 0086-186-5117-4066Skyp: shelly_wire Wire Spring Diameter 1.40mm 2.20mm