Frames of metal for fixing the X-ray films of the frame are made of stainless steel wire, resistant to aggressive media. Frames used in a darkroom for mounting the X-ray film followed by placement of frames in installations for photochemical treatment. standard dimensions: 13 x 18 , 18 x 24 , 24 x 30 ,30 x 40 , 35 x 35 , 35 x 43