Prestressed tube

Reinforced composite pipe construction

Reinforced conventional concrete pipe having an evenly distribut

Reinforced flexible hose

Reinforced pipe and method of making

Reinforced plastic composite structure

Reinforced ribbed tubular structure and method of making same

Reinforcement structure for pipe

Reinforcing structure for conduit; and method

Reinforcing system for concrete pipe

Rubber hose

Self-locking stirrup mat

Separator for concrete wrapping to submarine pipelines

Shape retention hose construction

Slotted concrete pipe

Stackable stirrup mat

Stainless steel shafts, assemblies and methods of making same

Tube compression limiting apparatus and method

Tubular member and process of forming a tubular member

Vacuum hose