At first,the ground of field is hardened for leveling by steamroller or ground roller. For ground concrete,the place is excavated by JSB or etc.
The concrete is poured to the excavated area. 25cmx50 cm molds are placed. The reinforcing bars are placed into the molds.
Before pouring the concrete,anchor pipes are put amoung the reinforcing bars. After pouring the concrete,the gravels are poured up to the zero point as No:4 , No:3, No:2 sequintally. 76x3 mm vertical and 60x2mm horizontal pipes are placed.
All system is galvanised,electrostatically painted and handcuffs (cast iron) are mounted without welding The handcuffs keep the vertical and horizontal profiles without any welding