标准
EN GB AiSi ASTM DIN JIS bs
认证
CE, RoHS, 之二, SASO认证, KS, JIS, GS认证, ISO9001
Diameter tolerance
ISO f7/f8/f9/h8/h9 or as request
Roundness
Half of the tolerance ISO f7
Salt Spray Test
As per request
Technique
Cold Rolled,Hot Rolled,Galvanized
Material
CK45, 4140, 4340, SAE1518,JIS45C, 40Cr, 20MnV6, 42CrMo, SS431