up to standard. Laojiekou is a trademark brand that Jia Yifan applied for registration in China Trademark Office. The products mainly include nuts such as melon seeds and peanuts. The products produced by Laojiekou have been inspected by the Food Safety Bureau, that is, the melon seeds of Laojiekou brand have reached the hygienic standard. Laojiekou melon seeds belong to the category of baked nuts and seed foods.