沧州格锐特钻头有限公司
CANGZHOU GREAT DRILL BITS CO.,LTD.Booth：E3535

Exhibit Profile：
PDC bit, tricone bit,mud motor, coring bit, Hybrid bit, Torkbuster, PDC reamer, PDC hole opener, HDD reamers, foundation roller cone cutters, HDD roller cone cutters,raise boring roller cutter