Pile Must Enter The Rock, But How Much Do You Know about The Rock? 2024-10-09
Rotary digging pile is more and more big, reportedly design of existing pile diameter 6.3 meters, ningbo six cross island project, should want to go to the mountains and 1280 1600 and xugong.The drilling rig is also getting deeper and deeper, our 550 drilling rig with 6 24 meters friction rod can dr
Read More 
