double valve float shoe for well drilling

{"cid":"91191664","title":"Cement Equipment Double Valve Float Shoe Collar For Downhole Cementing","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/f9\/98\/c607e1c08ef3b6ff7b0b312da510-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Puyang Zhongshi Group","Model Number":"4 1\/2\"~36\"","Minimum Order Quantity":"5","Delivery Time":"depends on quantity","Certification":"API","Place of Origin":"China","Payment Terms":"T\/T, MoneyGram","Packaging Details":"Wooden Box","Type":"Cement\/Poppet-type","Color":"Blue or as required","Application":"oil and water well cementing tools","Working Pressure":"21Mpa-35Mpa","Valve":"single type or double type","Material":"K-55, L-80, N-80, C-95, T-95, and P110.","Use":"Well Drilling"}}

{"cid":"91217788","title":"LTC 5-1\/2 N80 Cementing Cement Double Valve Float Shoe for Oil Well or Gas Well","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/6d\/fa\/da0e175a8ea42929214390041970-200x200-1.jpg","attrs":{"Price":"100-300$\/piece","Brand Name":"SWS","Minimum Order Quantity":"1","Delivery Time":"7 days for 1 piece,more than 1 pieces need to be negotiation","Certification":"API 5CT","Place of Origin":"Jiangsu China","Payment Terms":"D\/A, D\/P, Western Union","Supply Ability":"3000 pieces\/month","Standard":"API","Bore O.D.(in)":"6\"","Bore I.D.(in)":"4 3\/4\"","Thread Type":"BTC","Steel Grade":"N80","Product Use":"Oil&Gas Well","Specification":"5-1\/2''","Style":"Cement Double Valve","Min BoreParameter(in)":"2\""}}