The use of cross-type dowels that are battered down with a gunshot method makes it possible to reduce labor intensity and speed up the process of erection and reconstruction of timber bridges. Objective of this paper is to develop a methodology for estimation of the permissible distance between dowels. For this purpose. the method of holographic interferometry in colliding beams was u... https://parisnaturalfoodes.shop/product-category/b12-spray-1000mcg/