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Study on impregnated teeth for bits in extremely hard rock formation of oil and gas drilling
XU Liang,LIU Yibo,SUN Yanlong,ZHOU Jinhui
Powder Metallurgy Industry ›› 2021, Vol. 31 ›› Issue (04) : 105-109.
Study on impregnated teeth for bits in extremely hard rock formation of oil and gas drilling
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