Find Phone number, Location Address and all other information of POSCO ENGINEERING AND TUWAIRQI STEEL MILLS LTD JOINT VENTURE Karachi on Branches.pk – Pakistan’s Largest Branches directory. POSCO ENGINEERING AND TUWAIRQI STEEL MILLS LTD JOINT VENTURE is a Karachi based company offering services / Products in Karachi as well as in other major cities of Pakistan, you can contact them directly on Phone number35630900