Apparatus and a method for the production of ribbed pipes

Apparatus for and method of producing corrugated thermoplastic t

Apparatus for making annularly ribbed plastic pipe and method of

Apparatus for producing multiple channel duct assembly and...

Blow molded tubing with special holes and method of making same

Blow-molding methods to form containers having upper and lower s

Clamshell corrugators and the like

Container with a foldable portion and method for...

Extrusion blow molding an automotive boot

Flexible corrugated rubber tubing of dual composition

Flexible plastic article and method of manufacturing the same

Method and an apparatus for the extrusion of plastic pipes

Method and an apparatus for the production of ribbed pipes

Method and apparatus for continuously extruding single-wall pipe

Method and apparatus for cooling hollow molded product

Method and apparatus for manufacturing ribbed pipe

Method and apparatus for manufacturing signs or the like carryin

Method and apparatus for orienting plastic of a pipe

Method and apparatus for producing a finned tube from synthetic

Method and apparatus for producing thermoplastic and products pr