| Certification |
API |
| Material |
High Manganese Steel |
| Use |
Well Drilling |
| Place of Origin |
China (Mainland) |
| Brand Name |
zhongshi |
| Model Number |
5 1/2" |
Float collar and guid 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 sealing structure,minimum resistance for cement or mud flow back; (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 IN-80.