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Personne àcontacter Ms. vivi
Huanghe, Zhengzhou, Henan
Supply all kinds of PDC geological drill We could make common kind and super prime quality ; natural and manmade ;superficial and impregnated ; core bit and coreless bit ; expansion and scraper kind. Specification:*2mmãï¿&frac*2;ï¿&frac*2;*0mmãï¿&frac*2;ï¿&frac*2;*5mmãï¿&frac*2;ï¿&frac*2;*5mmãï¿&frac*2;ï¿&frac*2;*9mmãï¿&frac*2;ï¿&frac*2;*4mmãï¿&frac*2;ï¿&frac*2;*8mmãï¿&frac*2;ï¿&frac*2;**3mmãï¿&frac*2;ï¿&frac*2;**3mmãï¿&frac*2;ï¿&frac*2;**3mm