Puzzling Evidence - What Do Nice Export Quality Chinese Cloisonne Beads from the 1970s Look Like?

Etsy vendor GemGlobe to the rescue, with boxed sets "imported in the late 70s," still in their original boxes:

12mm beads

15mm beads

12mm beads

17x12mm beads

12mm beads

Note the red beads are the only ones to feature spirals as a background motif instead of JingFa clouds.