4 1 2reg oilfield downhole tools

{"cid":"91217788","title":"3-1\/2 Inch 4-1\/2REG NC31 Oilfield Downhole Tools","imgUrl":"https:\/\/img.chinax.com\/nimg\/e0\/fe\/0a53241ec0691f1836566e0d637a-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":"3-1\/2","Upper and Lower Connection":"Hexagonal","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":"4-1\/2","Use":"Oil and Gas Drilling"}}