PT. Mulia Jaya Mitra Baja or well known as Mulia Jaya is a company engaged in the manufacturing of Steel Doors which has been established since 1972. Since it was established, Mulia Jaya started to produces metal based gate or commonly called Folding Gate and even then it continues until now Target marketing is not only general consumer but Mulia Jaya has managed to join a large-scale project. Some of the Shop House buildings and offices in and outside of Palembang City even took part in the Folding Gate production for construction at the Palembang's Mall, Palembang Jakabaring Market, and Bengkulu Indah Mall