Zhengzhou LD Diamond Products Co., Ltd., Profesional manufacturer for Diamond core bits and reaming shell

Diamond core bit including:
Impregnated diamond core bits
Natural surface-set diamond core bits
Electroplated diamond core bits.
Reaming shell is used to couple the drill bit with the core barrel, in order to keep the diameter of the hole.
It's widely used for geological exploration, water and electricity, traffic construction, building etc