Is the mutton barbecue expensive?

Yang Dongjia roasted sheep patented oven. The patent number is ZL 20 14 2 0582799.5, which has no oil smoke, saves people, carbon and time, occupies a small area and does not need special supervision. A person can look at several ovens at the same time. An oven can roast 3-6 sheep at the same time. Roast lamb chops, leg of lamb, chicken, duck, stuffy crock, stew, baked yam, potato, etc. can also be baked in the oven ...20010.000000000606