7 x 7 Moderately-Flexible Galvanized cable is Used where extreme flexibility is not needed. Often used in aircraft and automotive controls as well as a wide range of other mechanical applications.
7 x 7 Moderately-Flexible Stainless Steel cable is durable with greater flexibility and abrasion resistance. This is a good general purpose construction type for applications requiring strength and flexibility. Often used over pulleys and in pull-pull cable controls.
7 x 19 Extra Flexible
7 x 19 Extra-Flexible among the strongest and most flexible of cables, providing high stretch. Used where high flexibility and materials fatigue are concerns.