上海豫坤(慶增)實業有限公司是一家專業從事鋼材貿易和代剪切加工配送的綜合性公司，主要經營-國內外（進口）各大鋼廠的熱軋卷板、熱軋酸洗、冷軋卷、鍍鋅板卷，電工鋼（矽鋼片/硅鋼片），馬口鐵及鍍鋁鋅等資源。

寶鋼鍍鋅牌號一覽表

普卷：DC51D+Z,DC52D+Z,DC53D+Z,DC54D+Z,DC56D+Z
DX51D+Z,DX52D+Z,DX53D+Z,DX54D+Z,DX56D+Z
SGCC,SGCD,SGCE
烘烤硬化鍍鋅:H180YD+Z,H220YD+Z,H260YD+Z
HC180YD+Z,HC220YD+Z,HC260YD+Z
低合金結構鋼鍍鋅：H260LAD+Z,H300LAD+Z,H340LAD+Z,H420LAD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
加磷高強鋼鍍鋅：H220PD+Z,(CR210P),H260PD+Z
烘烤硬化鍍鋅：H180BD+Z,H220BD+Z,H260BD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+Z,S250GD+Z,S280GD+Z,S320GD+Z,S350GD+Z
結構鋼鍍鋅：S220GD+ZF,S250GD+ZF,S280GD+ZF,S320GD+ZF,S350GD+ZF
結構鋼鍍鋅：S220GD+ZF,S250GD+ZF,S280GD+ZF,S320GD+ZF,S350GD+ZF
高強度鋼鍍鋅：HC180YD+Z ., H180YD+Z,HC220YD+Z,H220YD+Z
高強度鋼鍍鋅：H180YD+ZF; H220YD+ZF  HC260YD+Z;HC260YD+ZF 
烘烤硬化鋼鍍鋅：HC180BD+Z;HC180BD+ZF,HC220BD+Z,HC220BD+ZF,
烘烤硬化鋼鍍鋅：H260BD+ZF,H260BD+ZF,HC300BD+Z,HC300BD+ZF
結構鋼鍍鋅：S220GD+ZF,S250GD+ZF,S280GD+ZF,S320GD+ZF,S350GD+ZF
結構鋼鍍鋅：S220GD+ZF,S250GD+ZF,S280GD+ZF,S320GD+ZF,S350GD+ZF
結構鋼鍍鋅：S220GD+ZF,S250GD+ZF,S280GD+ZF,S320GD+ZF,S350GD+ZF