https://www.tractor-specifications.com/tractors/happy-farmer/a-8-16 2026-04-08T02:31:58.827Z monthly 0.7 https://www.tractor-specifications.com/tractors/happy-farmer/b-12-24 2026-04-08T02:31:58.827Z monthly 0.7 https://www.tractor-specifications.com/tractors/happy-farmer/f-12-24 2026-04-08T02:31:58.827Z monthly 0.7 https://www.tractor-specifications.com/tractors/happy-farmer/g-12-24 2026-04-08T02:31:58.827Z monthly 0.7 https://www.tractor-specifications.com/tractors/happy-farmer/h-12-24 2026-04-08T02:31:58.827Z monthly 0.7 https://www.tractor-specifications.com/tractors/happy-farmer/m-7-12 2026-04-08T02:31:58.827Z monthly 0.7