C-profile rails and assembly rails type STSV with a height of 22 millimetres and maximum lengths of up to 2 metres for the fixing of pipe / tube clamps and hose clamps of the Heavy Series according to DIN 3015, Part 2, in conjunction with hexagon rail nuts type GMV. Manufactured from uncoated steel or galvanised steel. Alternatively also available in stainless steel and V4A 1.4401 / 1.4571 (AISI 316 / 316 Ti).