TianHe Oil Group Production include Drill Collar (DC),Drill pipe (DP),Heavy weight drill pipe(HWDP),square kelly,hexagonal kelly,stabilizer,Hole opener, Roller reamer, Casing scraper, Internal Casing Cutter,External Casing cutter,Marine or Mechanical,Key seat Reamer,Kelly Valve,Full opening safety Valve,FT type Drop-in Check Valve,FJ type-Arrow back PressureValve,Inside Bop,Float Valve sub,By pass Valve,Cup tester,Wear Sub,Circulating sub,cross over sub,Reduce sub,saver sub,lift sub,Different of Drilling jar,Fishing jar,Shock absorber,bumper Jar,Oil Jar,Bumper sub,Jar Intensifiers,

Bowen 150,Bowen70,Bowen20 Over shot and spear,Junk Basket,Junk sub,Fishing magnet, Flat Bottom Junk Mill,Concave Junk Mill,Bladed Junk Mill,Pilot Mill,Tapered Mills,Economill,String Mill,Skirted Junk Mill,,Hydraulic Bucking Unit,Downhole motor and tester,Jar tester,Tricone bit,,...