ຂັ້ນຕອນການສ້າງເຂື່ອນ how to construction hydropower plant

ຂັ້ນຕອນການກໍ່ສ້າງເຂື່ອນໄຟຟ້າ how to Construction Dam #ConstructionDam #HydropowerConstruction Step by Step ລາຍລະອຽດການສຶກສາ, ສຳຫລວດ, ອອກແບບ ແລະ ກໍ່ສ້າງ ສາມາດຕິດຕໍ່ໄດ້ Details of the study, survey, design, and construction can be contacted Anousone XAYYALATH Contract: Anousone11@gmail.com Laohydropower2021@gmail.com Tel, Whatsapp, Line, Wechat, Telegram, +85620 55296291 +85620 99447494