dual rotors overburden casing drilling system

{"cid":"91212094","title":"OD 127mm MRE Dual Rotors Overburden Casing Drilling System DHD Shank With Casing Tube","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/18\/b2\/29413272dea8ae47e020495c84b6-200x200-1.jpg","attrs":{"Price":"325-305USD\/PC","Brand Name":"MING","Model Number":"MRE127MM-DHD3.5","Minimum Order Quantity":"5PCS","Delivery Time":"10-25 Days","Certification":"ISO 90001","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union","Supply Ability":"2000PCS\/MON","Packaging Details":"Wooden case","Material":"Quality Steel","Button material":"Tungsten Carbide","Color":"Green","Processing Type":"Forging","Application":"water well drilling, piling,tunneling,mining","Advantage":"Wear resistant"}}

{"cid":"91121595","title":"Copper Exploration Casewell Drilling , Dual Rotary Simple Casing Bit","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/cb\/10\/2bdb1119f3f03b65456f26342572-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"ROSCHEN","Model Number":"BQ, NQ, HQ, PQ, SQ, BW, NW, HWT, PWT, SW, UW, ZW","Minimum Order Quantity":"Negotiable","Certification":"ISO, API","Place of Origin":"Germany","Supply Ability":"100 sets","Packaging Details":"wooden packing","Applications":"Copper Mining Drilling","Item":"Dual Rotary Casing Advance","Color":"customized","Usage":"Well Drilling","Condition":"New","Package":"pp bag + carton"}}