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GANSU RETTAIL IMPORT&EXPORT TRADE CO.,LTD.

Lanzhou,Gansu,China

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Our bits used in driling all formation except very hard abrasive formation. Ingredient of ours is good quality steel(22SiMnCrNi2Mo). Its service life is long, and quality is absolutely good due to is product by specialisation expert and factory.

Our bits used in driling all formation except very hard abrasive formation.

Ingredient of ours is good quality steel(22SiMnCrNi2Mo). Its service life is long, and quality is absolutely good due to is product by specialisation expert and factory.


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