Core Viewpoint - The company, Wencan Co., Ltd. (603348), has established a pricing mechanism for its products based on the cost-plus model, which is adjusted periodically according to fluctuations in aluminum prices [1] Group 1: Pricing Mechanism - The main raw material for the company's products is aluminum alloy [1] - The company has an effective price transmission and constraint mechanism with downstream customers to manage the risks associated with raw material price volatility [1]