

CN industry name俄系 C21
Catalog gauge range 0.4–0.7 mm for RU-C21-class corrugated hosts.

Catalog RU profile sheet (page 58). Dimensions as drawn in the ZTRFM profile atlas; confirm pitch/module on the signed drawing before tooling.
| Coil width | 1250 mm |
|---|---|
| Effective cover | 1000 mm |
| Pitch | 100 mm |
| Rib height | 21 mm |
Profile numbers help you compare hosts before quoting. They are not a substitute for signed drawings or a technical proposal.