slitting mill

Short definition from Wiktionary

Noun

1. 1
   An establishment where metal plates are cut into strips for making nails.
2. 2
   A rotating disc used by gem-cutters for slitting.
3. 3
   A gangsaw for resawing lumber for blind-slats, fence pickets, etc.

Proper noun

1. 1
   A village in Rugeley parish, Cannock Chase district, Staffordshire, England (OS grid ref SK0217).