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carbon steel 1045 round bar

Standard	GB, AISI, ASTM, ASME, EN, BS, DIN, JIS
Standard	DIN GB ISO JIS BA ANSI
Grade	Q235, SAE1020, SAE1040,SAE1045, 20Cr/SAE5120, 40Cr/SAE5140, SCM440/SAE4140/42CrMo, SS400
Brade	MDS
Surface	black, bright, polished, peeled
Used	Construction and decoration, industries and manufacture,building industry machinery