NAMTHUEN1 HYDRO POWER – DOWSTREAM PRE COFFERDAM : Drilling Rock & Stone by PRD and Made Piles by Grouting admin2019-09-26T09:25:04+00:00 0 Saturday August 17th, 2019 Underground Treatment Project description Location: Nam Kading River, Bolikhamxay Province, Laos Investor: Phonensack Group, Thailand Category: Downstream Pre Cofferdam Share Facebook Twitter LinkedIn Email