Business: building the overall water, trapping ??? engineering design and construction; basement, day side, sinks, toilets, expansion joints and other leakage, drip, leak Chung; cover insulation layer renovation renovation project. Reinforcement of base building and reinforcement, underpinning the structure underpinning buildings, houses and tilt correction Soft reinforcement. Various Chun foundation construction (drill rods, miniature steel toon, toon roots, soil anchor, Churning Chun, deep stirring rod, static Tsubaki) building construction industrial floor paint, interior and exterior painting, plastic sports foundation design and construction of venues, sports venues and plastic coverings. Design and construction of buildings of various metal corrosion and rust engineering.