Videos by Mahachalern Construction & Consultant Sole Co., Ltd. "MCC". ຮັບເໝົາກໍ່ສ້າງ ຂົວ-ທາງ, ທີ່ປຶກສາ ແລະ ສຳຫຼວດ-ອອກແບບ (Road-Bridge Construction, Consultant, Survey and Design)