Drill collars are available in lengths from 10 feet to 30 feet with 3-1/2"to 11" external diameter.
Our drill collar are made of AISI 4145H modified alloy steel and adopt medium frequency inductance...
(Y) Christmas (gas) Trees are mainly used for oil and gas production to control pressure and adjust flow rate of the oil and gas
KQ(Y) Christmas (gas) Trees and tubing heads are mainly used for oil and gas...
1.diamond drill bits are durable, with high quality and reasonable price .
2 increased gauge protection on gauge
3. PDC bits
1.Introduce of diamond bit manufacturerCangzhou Great Drill Co.,ltd...
1.pipe dies
2.Material:20CrMnTi
3.spec: all kinds of
4.wear-resiting,corrosion-resistomt
5.API Spec 7K Standard
Manual Tongs Dies And Slips Inserts1.The Manual Tong Dies And Slip...
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