The price is very low. Businesses in Pinduoduo are seriously involved in the price war, and they are all fighting for the supply chain. Whoever is cheaper pays the bill, so it is normal that there is no price difference. The price difference refers to the futures price difference of different grades, different delivery months, different commodities and different delivery locations. It also refers to the price difference of the same commodity due to various conditions, such as wholesale and retail price difference, regional price difference and seasonal price difference.