PT. Sumber Djaja Perkasa is an Indonesian based company that specializes in producing innovative building materials made of plastic with over 50 years of experience. Since our initial inception in 1965, we have constantly developed ground-breaking, innovative products to help make our customer's live not only easier, but also better in countless ways. Over the years, we have pioneered several plastic products in Indonesia, namely the double-wall corrugated roofing product (Under the brand of Atap Dingin ROOFTOP®), wood plastic composite products (Under the brand of DUMA®), uPVC & ASA roof tile product (ROYAL ROOF®), multiple variant of PVC hose, PE Rope, PVC Door and many other innovative products. All of our products and services are processed using professional machines that employ cutting edge technology under the care of skilled workers. Continuous innovative product designs and a fully integrated manufacturing system are all a part of PT. Sumber Djaja Perkasa ongoing commitment to quality, satisfaction, and service. We strive to consistently seek for ideas and innovations that could change our world to be a better one.