22.5 degree heavy-duty angle corner block for 20.5″ x 20.5″ box truss
45 degree corner angle for 20.5″ x 20.5″ square trussing
45 degree heavy-duty angle corner block for 20.5″ x 20.5″ box truss
60 degree heavy-duty angle corner block for 20.5″ x 20.5″ box truss
