Type of centralizer?
1. Non-welded bow spring centralizer
2. Roller centralizer
3. Rigid centralizer
4. Nylon centralizer & resin centralizer
2015年11月1日星期日
Casing non welded bow spring centralizer, bow spring centralizer, casing bow centralizer
Casing non welded bow spring centralizer, bow spring centralizer, casing bow centralizer
Type of centralizer?
1. Non-welded bow spring centralizer
2. Roller centralizer
3. Rigid centralizer
4. Nylon centralizer & resin centralizer
Type of centralizer?
1. Non-welded bow spring centralizer
2. Roller centralizer
3. Rigid centralizer
4. Nylon centralizer & resin centralizer
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