Results foriso9001 kelly bar drilling equipmentfrom 2 Products.
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Kelly Bar Advantage: 1. All kelly rods are made of high-strength alloy seamless steel pipes. 2. All inner key plates adopt integral forging, high strength and good wear resistance. ...
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Building Construction Equipment Open Split Type Drilling Bucket Customizable Items: Customized according to the customer's construction and the actual situation of the stratum. 1. ...
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