API oilfield 8 1/2" Spiral Drill Collar

Standard:

API, API 5DP

Grade:

API J55-API P110, API L80

Thickness:

47.6 - 203.2 mm

Section Shape:

Round

Outer Diameter:

3.875 - 11 inch

Place of Origin:

Shandong, China

Application:

Drill Pipe

Technique:

ERW

Certification:

API

Surface Treatment:

Copper Coated

Special Pipe:

API Pipe

Alloy Or Not:

Is Alloy

Secondary Or Not:

Non-secondary

Usage:

Drilling equipement