舍棄式快速鉆頭 (D×5點(diǎn)數(shù))

舍棄式快速鉆頭 (D×5點(diǎn)數(shù))
C25-SD15-75L C25-SD16-80L C25-SD17-85L C25-SD18-90L C25-SD19-95L C25-SD20-100L
C32-SD21-105L C32-SD22-110L C32-SD23-115L C32-SD24-120L C32-SD25-125L C32-SD26-130L
C32-SD27-135L C32-SD28-140L C32-SD29-145L C32-SD30-150L C32-SD31-155L C32-SD32-160L
C40-SD33-165L C40-SD34-170L C40-SD35-175L C40-SD36-180L C40-SD37-185L C40-SD38-190L
C40-SD39-195L C40-SD40-200L C40-SD41-205L C40-SD42-210L C40-SD43-215L C40-SD44-220L
C40-SD45-225L C40-SD46-230L C40-SD47-235L C40-SD48-240L C40-SD49-245L C40-SD50-250L
C40-SD51-255L C40-SD52-260L C40-SD53-265L C40-SD54-270L C40-SD55-275L C40-SD56-280L
C40-SD57-285L C40-SD58-290L C40-SD59-295L C40-SD60-300L