GUNUNG RAJA PAKSI, PT West Java Iron and Steel, Mukmin Kurnia, Djamaluddin Tanoto. mkt@grdsteel.com (62-21) 8900222, 89838229 www.grdsteel.com (62-21) 8900975, 8900974, 8901588 Jl. Imam Bonjol No. 4 Warung Bongkok Desa Sukadanau - Cikarang Barat, Bekasi 17520