Spiral Drill Collars
Drill collars)AISI 4145H Alloy Steel or Non-magnetic material )
Standard: API Spec7
Specification: OD: 3-1/8"-11"
Length: 10'-31'
Standard: API Spec7
Specification: OD: 3-1/8"-11"
Length: 10'-31'
Drill collars)AISI 4145H Alloy Steel or Non-magnetic material )
Standard: API Spec7
Specification: OD: 3-1/8"-11"
Length: 10'-31'
Standard: API Spec7
Specification: OD: 3-1/8"-11"
Length: 10'-31'
