列表:Automotive and mechanical structure pipe
GB/T3077 27SiMn automotive and (01-31)
GB/T3077 45# automotive and me (01-31)
GB/T3077 35#automotive and mec (01-31)
GB/T3077 20#automotive and mec (01-31)
EN10084 20MnCr5 automotive and (01-31)
ASTM A304 SAE8620H automotive (01-31)
JIS G4052 SCM822H automotive a (01-31)
JIS G4052 SCM420H automotive a (01-31)
GB/T 5216 20CrMnTiH automotive (01-31)
GB/T 5216 20CrMoH automotive a (01-31)
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