1.Main features
Forging shaft (50% rolled material spindle and 30% old drill collar spindle on the market)
Customized cutters,
Composite seal, metal seal, various models are available
2.According to the characteristics of the rig
and stratum condition, select the most suitable tooth type and bearing structure;
Digital cutting and processing according to
the drawing; one piece for one picture, one piece for one card;
Ensure the welding process to prevent overheating.
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