D-100 -90° DRYWALL CORNER BEAD
This Drywall Corner Bead, manufactured using sturdy zinc-coated steel,
provides excellent protection to external corners. The holes and knurled
surface provide an excellent “key” for the joint compound. This Corner Bead
can be applied either With nails, screws or clinch-on tools.

D-100-130° DRYWALL CORNER BEAD
This Drywall Corner Bead was specifically designed to provide protection to
external 130° wide angle corners. 130° Corner Bead is available from stock with
1 1/4″ or 1 1/8″ flanges. (This is to fit 135° corners)

D-200 DRYWALL METAL TRIM
For use with 1/2″ and 5/8″ Wallboard
This Drywall Trim provides a neat finish and solid protection to gypsum
wallboard at window and door jambs where wood trim is omitted. Holes in the
flange provide a “key’ for the joint cement.

D-300 DRYWALL REVEAL TRIM
This Drywall Trim is designed to provide crisp clean reveals around openings or at ceilings and floors The holes and knurled surface provides an excellent “key” for finishing with joint compound. For use with 1/2″ drywall to provides 1/2″ or 5/8″ reveal.

D-400 METAL TRIM
Provides edge protection at window and door openings, and Where
wallboard butts against concrete or other materials. Finishing cement is
optional. (For use with 3/8″, 1/2″ or 5/8″ wallboard)

4411 CHANNEL TRIM
A tapeable steel casing that provides maximum protection at door and
window jambs. Quickly installed by nailing through channel and board into
the jamb or framing, (For use with 1/2″ or 5/8″ wallboard)

All the info is taken from Bailey Metal Products Limited.  http://www.bmp-group.com/