产品描述SECOND-HAND DRILLING RIG BRAND-URB-1 PIECE, 1992 ISSUED IN PARTIALLY OPEN. VIEW, NOT MOUNTED ON THE CAR CHASSIS, DESIGNED FOR DRILLING INTAKE WELLS WITH A DEPTH OF 500-600M AT DIAM. DRILL PIPE DIAM. 89-73MM, WELL DIAMETER MM: 190.5-394; LENGTH[展开]