hejian zhongcheng drill bit

Keywords :

tci tricone bit,steel tooth drill bit,pdc bit,hole opener,tricone palm,single cone bit

　Hejian Zhongcheng Bit Manufacture Co.LTD, our brand “SRF”, “SRF” includes: Tricone bit( steel tooth & TCI bit), PDC drill bit (matrix & steel body), step drag bit, HDD Reamer bit (Hole opener), Stabilier, Drill pipe, drill rod, Rock Auger, bit breakers, bit subs, barrel reamer, open reamer , rock reamers, diamond core bits, concave pdc bits，barrel reamers, open reamerbits, rock reamers, ……