1. The cementing rubber plug series is divided into ordinary cementing rubber plugs and anti rotation cementing rubber plugs, with upper and lower rubber plugs used for double plug cementing and upper, middle and lower rubber plugs used for double stage cementing.

2. Standard cement plugs are suitable for various floating hoops and shoes; Anti rotation cement plugs are suitable for anti transformation floating hoops and floating shoes.

3. The top and bottom plugs are designed with dual stage sealing and scraping wings. The polyurethane scraping wing has good cleaning and wear resistance of the casing.

4. The anti rotation rubber plug is designed with an anti rotation mechanism, which can greatly improve the drilling speed.

5. PDC drill bits or roller drills can be drilled.