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Non-magnetic Drill Collar
Non-magnetic Drill Collar

Non-magnetic Drill Collar 1,API standard drill collar 2,It is designed in accordance with SY/T 5144-1997 standard.

 Drill Collar

1,API standard Non-magnetic Drill Collar

2,It is designed in accordance with SY/T 5144-1997 standard.

Main specification:

Name

O.D

I.D

Thread type

Lengthinch

Non-magnetic

104.8 mm

50.8 mm

NC31-41

30

Non-magnetic

120.7 mm

50.8 mm

NC35-47

30

Non-magnetic

158.8 mm

71.4 mm

NC46-62

30

Non-magnetic

165.1 mm

71.4 mm

NC46-65

30

Non-magnetic

177.8 mm

71.4 mm

NC50-70

30

Non-magnetic

203.2 mm

71.4 mm

NC56-80

30

Non-magnetic

228.6mm

71.4 mm

NC61-90

30

Non-magnetic Drill Collar

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