甬金股份：公司大部分冷轧不锈钢产品通过上下游锁价的模式进行生产销售

Group 1 - The core viewpoint of the article highlights that Yongjin Co., Ltd. primarily sells its cold-rolled stainless steel products through a price-locking model with upstream and downstream partners, ensuring stable operating profits for the company [2] Group 2 - The company bases its pricing on the opening price of upstream hot-rolled steel, adding cold-rolling processing fees to quote downstream customers [2]