The galvanised steel cable construction 6X7 AT is composed of 6 strands of 7 wires with a central polyamide core. An outer sheath of Polyamide 12 protects it from abrasion and the external elements.
The 7X7 sheathed galvanised steel rope construction, also known as 6X7 + WSC, consists of 7 strands of 7 wires i.e. 49 wires. The rope is covered with a layer of polyamide 12. This sheath protects it from abrasion in harsh conditions.