Method for producing pipe having polygon-shaped closed cross-sec

Method for roll forming steel pipes, and equipment for same

Method of breakdown-forming electro-unite tubes

Method of lap welding eventual can blank consisting of metal she

Method of making a brazeable metal pipe having tube-insertion ap

Method of manufacturing a pipe having sections with different cr

Method of manufacturing loading plane border frame tubes for...

Method of manufacturing pipe

Method of manufacturing pipes having sections with different wal

Pittsburgh seam closer having single seaming roll

Process and apparatus for continuously transforming a strip to a

Process for fabricating heavy wall to pipe

Process for obtaining composite hollow members from variegated l

Roll former for tube mill

Roller mount with three-axis freedom

Roller tube for awning and method of forming

Shaped composites and method of making thereof

Sheet-bending press for making pipe

Silencer shell forming apparatus

Tapered tube manufacturing apparatus and process