MR measurement, DAC and CF is what it means

MR: metal trunking SC: welded steel pipe ACC: laying in the ceiling The latter number is labeled size size Give you a I downloaded, I hope to help you and the need for: pipe laying labeling method sc: welded steel pipe tc: electrical conduit Thin steel pipe pc: rigid plastic pipe ct: cable tray cp: metal hoses SR: steel trunking RC: water and gas pipes.