(Tiếng Việt) Grouting Vào Trong Nền Đá Theo Phương Pháp GIN
Sorry, this entry is only available in Vietnamese.
Sorry, this entry is only available in Vietnamese.
Sorry, this entry is only available in Vietnamese.
Sorry, this entry is only available in Vietnamese.
Sorry, this entry is only available in Vietnamese.
Sorry, this entry is only available in Vietnamese.
ANHUY CONSTRUCTION VỚI KHOAN PRD – CÔNG NGHỆ VÀ ỨNG DỤNG 1. What is PRD technology? PRD stands for Percussion - Rotary - Drilling. So PRD technology can be described as creating a drill hole in a hard geological environment (rock) by the simultaneous use of a hammer head (bits) with artificial diamond particles that are both [...]