hat
Regilarite: max 0.5mm / 1m pou tib anba a 3m, 0.8mm / 1m max pou tib ant 3 a 6m, 1.2mm / 1m pou tib ...
eng
Straightness: 0.5mm/1m max for tubes below 3m,0.8mm/1m max for tubes between 3 to 6m, 1.2mm/1m for tubes...