Yang Dongjia patent roast sheep oven national five patents baking oven. Patent No.: ZL 2014 2 0582799.5 No fumes, save people, save charcoal, save time, covers an area of filial piety does not need to be supervised, a person can look at the same time more than 10 sets of roaster. One oven can roast 3-6 sheep at the same time. The oven can also bake mutton chops, lamb legs, chicken, duck, baked smothered woks, boiled vegetables, baked yams, potatoes, ... .9933