High Wear Resistance Thread R38 T38 T45 T51
Extension Drilling Tools T38 Coupling Sleeve. T hreaded coupling sleeve are made of high quality of alloy steels and CNC machining guarantee our reliable and consistent quality control of coupling sleeves.Both semi-bridge and full-bridge coupling sleeves are manufactured by us in different sizes as below: Thread sizes: R22, R25, R28, R32, R35, R38…
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