Crawler tractors and bulldozers from Russian manufacturers including models T-130, D-170 and DET-250. Side, top, and front elevations are provided for accurate site layout and logistics planning. Specific models cataloged: DZ-25, DZ-120, D-170, T-130, T-130B, DET-75, and the heavy DET-250 with rear ripper. Component detailing includes track assemblies, blade geometry, and engine housing profiles. All dims. in mm; drawings reflect standard chassis widths and heights for clearance checking. Logistics planning, mining facility design, and site clearing diagrams are the primary use cases. Technical detail covers hydraulic ram placement and cab structural outlines.