Find Phone number, Location Address and all other information of Dow Lab Gulzar-e- Hijr Karachi Collection Centre on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number 021- 99261487-88, 021 38771111, 99261472, or you can visit their location in person, address location is: Main Laboratory collection center Ojha campus, Gulzar-e- Hijri, Suparco Road Karchi.