All elevators shall be designed and manufactured according to the requirements in API Spec 8C Specification for Drilling and Production Hoisting Equipment

(1) DD Elevators Model DD center latch elevator with square shoulder are suitable for handling drill collar, casing and

     tubing. The load ranges from 150 tons to 350 dons. The size ranges are from 2 to 51/2.

(2) DDZ Elevators DDZ series elevators are center latch elevator with 18 degree taper shoulder, applied in handling the

     drilling pipe and drilling tools, etc. The load ranges from 100 tons to 750 dons. The size ranges are from 2 to 6.

(3) CDZ elevator CDZ drilling pipe elevator is mainly used in the holding and hoisting of drilling pipe with 18 degree taper

     and tools in oil and natural gas drilling, well construction.

(4) TA elevator Model TA center latch elevator with square shoulder are suitable for handling drill pipe, drill collar, casing

     and tubing.

(5) CD elevator Model CD side door elevator with square shoulder are suitable for handling tubing, casing ,drill pipe and

     drill collar in oil and natural gas drilling, well construction.

(6) SLX elevator Model SLX side door elevator with square shoulder are suitable for handling tubing, casing ,drill pipe

     and drill collar in oil and natural gas drilling, well construction.

(7) Y Series Slip Type Elevator The slip type elevator is an indispensable tool in holding and hoisting drilling pipes, casing

     and tubing in the oil drilling and well tripping operation. It’s especially suitable for the hoisting of integrated tubing

     sub, integral joint casing and electric submersible pump column.

(8) SP elevator SP series auxiliary elevator is mainly used as a tool in handling single tubing, casing and drill pipe with

     taper shoulder.

(9) Single Joint Elevator SJ series auxiliary elevator is mainly used as a tool in handling single casing or tubing in oil and

     natural gas drilling and cementing operation.

10) DDZH hydraulic elevator DDZH hydraulic elevator is center latch elevator. Through changing the bushing, it can

      handle drilling pipe, drill collar, casing and tubing and uses the hydraulic control system, which makes the operation

      more convenient, effectively reduces the workers’ labor intensity and improves the work efficiency; it can also realize

      remote control and make the use safer and more reliable.

(11) CDZH hydraulic elevator CDZH hydraulic elevator is center latch elevator. Through changing the bushing, it can

       handle drilling pipe, drill collar, casing and tubing and uses the hydraulic control system, which makes the operation

       more convenient, effectively reduces the workers’ labor intensity and improves the work efficiency; it can also

       realize remote control and make the use safer and more reliable.