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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

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.

2.Our Advantage

----adequate stocks
----competitive price
----timely delivery
----factory direct     

3.Packing/Shipping

Packing :wooden case or iron case ,also be packaged according to customer requirements.

Modes of transportation: by sea, by air or land transportation, Of course, a small amount can also by Express.

4、Please contact

TEL：8618232186601  ；8617340754111

whatsapp:8618232186601

        8618031733007

E-mail：great25@zkdrilling.com

       great03@pdcbit.net