... from steel profile & aluminum profile Description:1.Name: precision carbon steel & alloy steel ... marine part, truck part ItemDescriptionProduct ClassMachiningMaterialCopper, Carbon steel 25#, 40#, Stainless steel such as 304, 316, alloy steel 40Cr, 20Cr, Aluminum alloy ... parts, motorcycle parts, pump parts, locomotive parts, machinery parts, tool parts, furniture parts, ect.Ningbo Jiahui Machine Parts ...