2012DIN 19571-1:2012-10 Gully tops 500 × 500 for road gullies, class C 250, curve type - Part 1: Summary / Note: Applies in conjunction with DIN 1229 (1996-06), DIN EN 124 (1994-08).
2012DIN 19571-1:2012 Gully tops 500 × 500 for road gullies, class C 250, curve type - Part 1: Summary
1997DIN 19571-1:1997 Gully tops 500 × 500 for gullies, class C 250, curve type - Summary