... wear-resisting mud pump(flow 4000-28000 m3 / h), Hydraulic reamer drive assembly(the shaft power 300-4800 kw), Electric ... reamer drive assembly(the shaft power 300-4800 kw), the bucket ... blow, overflow tube(tube diameterΦ1200-2500mm), electric hydraulic drawworks, reamer beam, rotating tube bending, gate valves, drag chain. The products ...