Minimalist beautiful contour lines

This is a set of 25 business PPT templates with minimalist and beautiful contour lines background;The cover of the slide template uses a pebble-shaped contour line pattern and a black irregular circle as the background image. Fill in the presentation date on the black graphic, and the PPT title text on the right. The interface design is elegant and simple.PowerPoint template content page made from multiple black thin line slide charts. In addition, black and white business building pictures, mountain peak pictures, bridge pictures, etc. were used for typesetting.This template has a simple design and is suitable for making all kinds of business presentation PPT, work summary report PPT, etc.