4 1/2" -13 3/8" High Quality API float collar float shoe casing centralizer for cementing well
Float collar and float shoe are necessary conventional accessories for down structure of casing string. The features are as follow:
(1) Inside structure are aluminum alloy, easy for drilling;
(2) Can be connected with same type casing directly;
(3) Reliable backpressure
(4) Valve seat and valve body can effectively prevent cement from flowing back;
(5) Hardness of the materials for the body is equal to API N-80.