Casing bushing is combined by bushing body and insert bowls. It is suitable for handling casing less than 30 in. There are two types: solid and split. CU and CUL are solid bushing, and CB is split bus
The company has developed a wide variety of mechanized wellhead tools for oil drilling and production with a full set of models, including more than 50 series and more than 100 models including ZQ drill pipe power tong series
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