According to the inquiry of Sanyuan Plastic Network, the reason why Miaofang Qingyan is so expensive is brand value and research and development cost.

1, Miaofang Qingyan is a high-end brand, and its products have the characteristics of high quality, high-tech content and unique formula, which will make its products more expensive.

2. Miaofang Qingyan invested a lot of R&D resources and technology to develop efficient, safe and unique products. These R&D costs will be reflected in the price of products.