Piles PHC pile ( Pretensioned Spun High Strength Pile ) ASC pile ( Aizawa Steel & Concrete Composit Pile ) AST pile ( Aizawa Step-taper Pile ) AG pile ( Aizawa Grip Friction Pile ) H pile ( H shaped PC Pile ) ATOM ( Aizawa Auger Pile Method ) Kneeding ( Kneeding Wall Method ) STBC ( Steel Pipe Reinforced Taishin-Basyouchi Pile ) Econ-pile ( Small Entry Auger Pile ) Second Product Concrete Maikoma ( Top Base Method ) Spancrete ( Reinforced Huge concrete slab ) Erukkusu ( Exterior Wall panel with FLC ) BeauRock ( Colored Inter-locking block ) Maxstone ( Patterned Landscaping slab ) Stepper ( Riverside and Slope steps ) Green-grow ( Slope planter steps ) Hume pipe ( Ａ,B,C type Centrifugal pipes ) Box Culvert CSB ( Centrifugal SuperBox Culvert ) VS Ditch ( Variable Slope Roadside drainage ditches ) Tension Wall ( Low cost Block Wall system ) Hydsel ( Animal Escape ditch ) Marucon Block RMC SEC Concrete ( Sand Enveloped with Cement) Low water content Concrete High Strength Concrete ( CFT ) High Preformance (High Quality RMC) Roller Compacted Cement (RCCP)