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7g slot ￡ ; Color : 7 7G gold ; Delivery This item can't be shipped to your address Please, select another ; Service Free returns within 90 days ; Payment methods 7g slot API RECOMMENDED PRACTICE 7G—ADDENDUM 1 It is also recommended that drill string members be marked using the mill slot and groove method as shown in Figure 83

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7g slot API RECOMMENDED PRACTICE 7G—ADDENDUM 1 It is also recommended that drill string members be marked using the mill slot and groove method as shown in Figure 83