Bar-wrapped pipe (BWP) (Может быть steel cylinder bar wrapped pipe)

Вообще речь идет о водопроводных трубах.

Вот материал из "Википедии" с описанием, но хотя бы даже приблизительный эквивалент найти пока не удается:

Pipe may also be made from concrete or ceramic. These pipes are usually used for low pressure applications such as gravity flow or drainage.

Most concrete pressure pipe for public domestic potable water and sewer lines is manufactured in accordance with the American Water Works Association (AWWA) ([2]) standards C301 and C303. C303 pipe, usually known as Bar-Wrapped Pipe (BWP), has round bar stock helically wound, under mild axial tension, around the exterior of a steel cylinder. Steel joint rings, a bell ring on one end and a spigot ring on the other, are welded to the ends of the steel cylinder. The spigot ring is shaped with a groove near the nose that accommodates a rubber o-ring sealing gasket. The steel cylinder and joint ring assembly form the watertight membrane for the pipe. The bar stock and steel cylinder are made from mild, low carbon steel. Bar stock diameters range from 7/32" up to 3/4". The steel cylinder thickness can range from 12 gauge (0.1046" thickness) to 3/8" plate. For corrosion protection, the interior and exterior surfaces are coated with Portland cement-rich mortar or concrete.