longyuedrillbit is a leading brand from China operating globally. longyuedrillbit was founded in 1998 with its headquarters in Junziguan Industrial Zone, Hejian City,Hebei Province. The longyuedrillbit deals in tricone bit, PDC bit, core bit, one-cone bit, assembled bit large-caliber, drag bit, drill pipe, drill collar, elevator. If you have a query or are looking for a quick quote then contact us here