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Drill Core Bit And Core Drill	ZWT Casing Advancer	DTH Drill Pipes	Step Type Bits
HWL Casing Advancer	MACH DTH Hammer	Sonic Casing Shoe	PWL Casing Advancer
BW Casing Advancer	BR DTH Hammer	Single Cone Bit Tricone Drill Bit	SD DTH Hammer
PW Casing Cutter	NWL Casing Advancer	PDC Drill Bits	HQ Casing Advancer