Post Office: PAK. STEEL MILLS KARACHIPost Office Type: SUB OFFICE Delivery Office Status: Non Delivery Post OfficeDistrict: Korangi GPOPin/Post Code:75000Region: SindhContact Address: Postmaster, Post Office PAK. STEEL MILLS KARACHI (Sub Office), Korangi GPO Pakistan, Pincode:- 75000Postal Dist:- Korangi GPOPostal Region:- SindhPostal Circle:- Sindh