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API 7-1 Drilling String Petroleum Non Magnetic Drill Collar Ordinary

2025-04-13 introduction 4950

After-sales Service:

1 Year

Warranty:

1 Yeart

Manufacturing Process:

Forging

Surface Treatment:

Polishing

Operation Pressure:

Atmospheric Pressure

Material:

Alloy

Certificate:

API

Trademark:

East heavy

Transport Package:

According to The Custom

Specification:

According to the custom

Origin:

Henan China

HS Code:

8431431000

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