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A crease can be folded as either a mountain fold (left) or a valley... | Download Scientific Diagram
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Origami folds: (a) 'mountain fold', 'valley fold', 'swivel fold'; (b)... | Download Scientific Diagram
Domestika - Valley folds ✔️ Mountain Folds ✔️Double folding ✔️ Origami for Beginners: Materials and Basic Folding Techniques: http://bit.ly/2vtyfcy | Facebook
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