TUMBAKMAS INTI MULIA, PT DKI Jakarta Building Material, Oth. Prefabricated Buildings of Iron Or Steel, Zinc Alloys, Cynthia Tourisia, Dharmadi super_lokfom@centrin.net.id (62-21) 5482308, 5348825, 53675580 www.tumbakmas.co.id (62-21) 5332934, 5482520 Jl. Letjen. S. Parman Kav. 32-34, Jakarta