Your choice of welded vs cut and notched vs. knocked-down drywall options.
Continuous weld
Also called full or fully welded and/or full profile weld. Machine mitered continuous weld
Face weld
Face welded frames are welded only on the both faces of the frame
KD (Customer to weld)
Elevations cut and notched, then shipped knocked-down (KD) for assembly and welding in your shop.
Knocked-down (KD – Drywall)
Knocked-down (KD) drywall frames allow for easy shipping and convenient assembly in the field.