Date: 2011-08-09 Hits: 2804
The master bushings and insert bowls with the size from 17-1/2 to 37-1/2 inch are produced. They are csat with high-quality alloy steel and the sizes conform to API Spec 7k.There are two types , pin drive and square drive. API standard rotary slip, drill collar slip, casing slip or roller Kelly bushing can be contained in them.
Specifications:
MASTER CASING BUSHING SELECTION CHART
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