Currently I work at Uretek Ground Engineering Company affiliates Mainmark Ground Engineering Company, sale engineer position. Service in the maintenance, strengthen raise the level of concrete slab, called “Uretek”. Uretek is technology of leveling slab-lift, raise, re-level and re-support of concrete floors both inside and outside the building. Mainmark resin is extremely strong. but is over 20 times lighter than traditional cement grouts, so it places very little extra weight on ground that is often already over-stressed. Mainmark resin is also impervious to water. Mainmark method is unique. Mainmark method work is fast, most job are done in a day or two, trip hazards are eliminated and forklifts run smoothly,traffic can resume in just 30 minutes. The Mainmark method is proven in Australia and in developed countries overseas.