Auger Drive, Drum Cutter, Breaker Hammer manufacturer / supplier in China, offering Professional Heavyweight High-Strength Auger Spiral Drill Pipe for Geological Borehole Sampling and Well Drilling, Durable 75mm 100mm 110mm 130mm 150mm 180mm Spiral Auger Drill Pipe for Earth Layer Drilling in Coalfields, Ou Bao Hydraulic Auger Drill Rig Geotechnical Drill Pipe Motor Engine Gearbox for Farm Construction Excavator and so on.