供应405 406 409 430 434 439耐热合金钢
GCr4GCr15GCr15SiMnGCr15SiMoGCr18MoB00040B00150B01150B03150B02180G20CrMoG20CrNiMoG20CrNi2MoG20Cr2Ni4G10CrNi3MoG20Cr2Mn2Mo9Cr189Cr18Mo1Cr18Ni9TiB10200B12200B12210B11200B12100B10210B21800B21810B32160)