hainaisen manganese coal mining drill bits

{"cid":"91207487","title":"3\" Directional Drill Bit Manganese Steel Metal 50 Cone PDC Bit For Well Drilling","imgUrl":"https:\/\/img.chinax.com\/nimg\/8d\/10\/7c6a57b328bb8cb98e3ff275e7bf-200x200-1.jpg","attrs":{"Price":"To be negotiable","Brand Name":"Hainaisen","Model Number":"4 Blades","Minimum Order Quantity":"10 pieces","Delivery Time":"5-7 business days","Certification":"ISO 9001","Place of Origin":"China","Payment Terms":"T\/T, L\/C","Supply Ability":"300pcs per day","Packaging Details":"customized","Product Name":"Directional Drill Bit","Usage":"Minning , Coal , Well water","Machine":"Steel body","Customized Size":"Yes","Material":"Tungsten Carbide","Machine type":"Drilling Equipment"}}

{"cid":"91182652","title":"10-inch DTH Drill Bits High Manganese Steel Carburized Steel for Coal and Iron Mining","imgUrl":"https:\/\/img.chinax.com\/nimg\/65\/24\/6aa0e7b7b646f51a528a0123b427-200x200-1.jpg","attrs":{"Price":"$1,200","Brand Name":"SOLLROC","Minimum Order Quantity":"1","Place of Origin":"Hunan, China","Certification":"ISO:9001","Weight":"90 KG","Material":"Carburized steel","Processing Type":"Forging","Diameter":"10 inch","Face Shape":"Flat, convex, concave","Button type":"Spherical, Parabolic, Ballistic","Bit Dia(mm)":"254","Air Hose":"2","Guage buttons":"12\u00d7\u03c619","Front buttons":"8\u00d7\u03c618+18\u00d7\u03c616","Part No":"HD10-254","Rock hardness":"200-260 Mpa","Bit Dia(inch)":"10\"","Shank Bits":"NUMA100","Compressive strength":"200-260 Mpa"}}