For installation between the wellhead assembly or surface oil pumping unit and the field marketing valve at oil or natural gas wells

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. > Other, of stainless steel: > Other > For installation between the wellhead assembly or surface oil pumping unit and the field marketing valve at oil or natural gas wells > For installation between the wellhead assembly or surface oil pumping unit and the field marketing valve at oil or natural gas wells