Our co***ny was established for about 30 years and we are one professional manufacuter and supplier of new and used (refurbished) drill bits which are applied in oil fields and water wells including tricone bits ,PDC bits and drill pipes.Various models and dimensions are available.
Due to the excellent quality ,competitive price,superior service,our products have exporpted to many countries and won a very good reputation from our customers .We are quite sure that our products will meet the requirement...
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