中汽股份：业务模式主要是与客户签订框架合同

Core Viewpoint - The company, Zhongqi Co., announced its business model primarily involves signing framework contracts with clients, who then place testing orders based on their testing needs [1] Summary by Categories Business Model - The company operates under a framework contract system, where clients issue testing orders according to their specific requirements [1] - There are two charging methods: one based on the contract, charging according to testing time or mileage, and the other providing a one-stop service solution for road testing, which is charged on a project basis [1]