4 1 2reg oilfield drilling tools

{"cid":"91217788","title":"3 Inch 4-1\/2REG NC31 Oilfield Drilling Tools","imgUrl":"https:\/\/img.chinax.com\/nimg\/0e\/92\/226c0996860aded853d0e20e8352-200x200-1.jpg","attrs":{"Price":"777","Brand Name":"SWS","Minimum Order Quantity":"1 PCS","Place of Origin":"China","Product Name":"Rotary Kelly","Standard":"API 7-1","Size":"3","Upper and Lower Connection":"Square","Top Connection Thread":"4-1\/2REG","Bottom Connection Thread":"NC31","Top Connection OD":"5-3\/4","Bottom Connection OD":"4-1\/8","ID":"1-3\/4","Drive Section":"4","Use":"Oilfield Drilling"}}