... as sucker rod, drill collar, drill pipe and oil tube, etc. It has over 300 professional employees ... oil tube 5CT-0967. Our products and producing ability as follows:1,sucker rod 7,000,000 meters/year2,drilling ... collar 10,000 pieces/year3,drill pipe 20,000 tons/year4. oil pipe 40, ... 000 tons/year5. drill pipe tool joint 100,000 set/year API 5DP drill pipe for oil field ...