CAHAYA HARAPAN SENTOSA, PT DKI Jakarta Natural Stone, Hengky Sentosa. info@barosmastone.co.id (62-21) 5882062, 4844229 (62-21) 54399491, 54373719 Ruko Gardenia Blok C2/08 RT.03/RW.014, Kel. Pegadungan-Kec. Kalideres, Jakarta Barat