Spiral orbital shear apparatus

Spiral wire and a method of manufacturing such a wire

Spiral wire belt

Spring assembly and manufacture thereof

Spring bands for incorporation in spring units

Spring base and method of forming same

Spring coiling machine

Spring coiling machine

Spring coiling machine with improved cut-off means

Spring coiling machine with improved feed roll drive means

Spring forming machine

Spring forming machine with conveying device

Spring machine

Spring offset forming machine

Spring winding automatic machine

Spring-forming machine

Stabilizing slide fastener tapes

Stacked coiling-transporting

Staple forming machine

Staple making and driving machine