We sells 10 mm x 12 meter deformed concrete iron with product specifications as follows: Diameter: 10mm Length: 12 meters Weight: 7.4 kg We sell the nearest SNI SCREWED CONCRETE IRON in Jakarta with the best quality and very affordable prices. Most contractors understand that concrete will crack over time due to the change of seasons. For this reason, the application of screwed concrete aims to increase the tensile strength of concrete and provide strength to concrete structures to help resist cracks. Concrete iron or reinforcing steel is iron which has a chemical composition ranging from Carbon, Shulpur, Phosphorus and iron ore, so it is very good as a pressure tool in concrete and to strengthen and help improve the quality of the bond with concrete so that it remains firm under pressure. In its use, concrete iron is often applied in several construction buildings and public facilities infrastructure such as: • Concrete foundation • Beams and walls • Making roads, strengthening roadsides and embankments • Drain • Bridge