https://www.tractor-specifications.com/tractors/heider/6-10 2026-04-08T02:31:11.180Z monthly 0.7 https://www.tractor-specifications.com/tractors/heider/b 2026-04-08T02:31:11.180Z monthly 0.7 https://www.tractor-specifications.com/tractors/heider/c-12-20 2026-04-08T02:31:11.180Z monthly 0.7 https://www.tractor-specifications.com/tractors/heider/c-15-27 2026-04-08T02:31:11.180Z monthly 0.7 https://www.tractor-specifications.com/tractors/heider/d-9-16 2026-04-08T02:31:11.180Z monthly 0.7