Series

Description

Specification

Drill-stem Tools

Inside Blowout Control Tools

Kelly Valves

3-3/8″～8″, 35Mpa～105Mpa

Tubing Valves

In all size

Full-open Safety Valves

3-3/8″～8″

Arrow Type Check Valves

4-3/4″～8″

Inside BOP Valves

3-1/2″～5-1/2″, 35Mpa～105Mpa

Drop-in Check Valves

4-3/4″～9″

Float Valves(Flapper Type & Check Valve)

In all size

Stabilizers

Integral Spiral Blade Stabilizers

3-3/8″～28″

Straight Blade stabilizers

3-3/8″～28″

Integral Mandrel Sleeve stabizizers

5-7/8″～28″

Two Piece Mandrels Sleeve Stabilizers

8-1/2″～28″

Non-rotary Stabilizers

5-7/8″～28″

Stabilizer with Back-reaming

6″～17-1/2″

Diameter changeable stabilizers

Dia. Changeable range 8″～8-1/2″

Roller Reamers

Roller Reamers Type MF（Type DR，Type JY)

5-7/8″～28″

Subs and Short Joints

Side entry subs

3-1/2″～11-1/4″

Increment Circulating Subs

3-1/2″～11-1/4″

Drill-stem subs

In all size

Float Valve Subs

4-3/4″～8″

Tool Joints

In all size

Kelly Saver Subs

4-3/4″～8″

Saver Subs with Rubber

4-3/4″～8″

Premium Connection Subs

Upon request

Integral Pup Joints

In all size