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1. ɿ з
븻, , , , Ⱦϸ, 帻
2. з
1)
2) ũƮ : ⼺(RC, PC, PHC), Ÿ(Franky, Pedestal, Raymond, JSP)
3) : Pile, H
4) ռ : Sole Cement, ռ
3. ð з
1) Ÿ԰ : Ÿݰ,
2) ԰ : ԰, , α, Ʈ
3) Ÿ() : All Casing, RCD, Earth Drill, Micro Pile, Earth Auger