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Diamond Core borr

Vår PDC petroleum borrning bit / olja & gas borra lite,Website:, vilka alla används för borrning oljefält. Jämfört med stål bitar, är matrix kroppen mer lämplig för hårdrock. Bits livstid är två gånger än stål kroppen.


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至: shannxi hainaisen petroleum technology Co.Ltd
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hainaisen broca, broca de taladro de pdc, broca de taladro, pedacito de taladro del pozo de agua
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پٹرولیم ڈرلنگ مشین
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