42地质钻杆接头,42矿用钻杆材质
89套管,108地质套管,1..
108岩心管,127岩心管,..
89止水套管,108探水套管..
42钻杆,42地质钻杆,42..
42地质钻杆接头,42矿用钻..
50钻杆,50地质钻杆,50..