Рџр Рћр¤р˜р› Рџр Рћр€р•рљрў Рљрђр›р˜рўр— Р‘р˜ Р€рђрљрјр‘р•рљ 0,21 1,0 1,46 -

These are technical measurements, typically representing dimensions like: 0.21 mm: Thickness of the metal. 1.0 m: Width of the sheet.

Breakdown of the Decoded Text:

Converting "болно" to Cyrillic - Stack Overflow These are technical measurements

Likely refers to a specific design or technical specification for a metal profile (such as decking or siding). These are technical measurements