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Desc:YINHAI 12 1/4" TRICONE BITS-- REAL PHOTOSYINHAI TRICONE BITS OVERVIEW & TECH DATAYINHAI FOREIGH EXHIBITION SHOW About the company-HEJIAN YINHAI ROCK B...
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Desc:Partially Hydrolyzed Polyacrylamide (PHPA) PowderPHPA Powder for Drilling Mud AdditiveBluwat Chemicals is the leading manufacturer and exporter of goo...
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Desc:8 1/2" pdc drill bit 5 blades, pdc drill bit for oil and gas,fixed cutter pdc drill bit Product DescriptionGlorytek Industry (Beijing) Co., Ltd., is ...