Find Phone number, Location Address and all other information of Steel Companies in Karachi Diamond Steel Karachi on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-21-32730873, or you can visit their location in person, address location is: F-17-18/1, Pl. 12 Wo-4, Moeen Steel Mkt., Moin Plaza Baba-E-Urdu Rd..