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method for the preparation of bis - azidoformiaten, methods for the preparation of a grondlaagpreparaat to give polyestervoorwerpen to other objects.method for modifying polyestervoorwerpen and resulting objects.
method for the preparation of bis - azidoformiaten, methods for the preparation of a grondlaagpreparaat to give polyestervoorwerpen to other objects.method for modifying polyestervoorwerpen and resulting objects.