Legal analysis: it is a technical contract, and the purchase and sale contract mainly refers to the sales contract, which is an agreement on the external sales and external processing of the company's products. Technical service contract is mainly a contract concluded by one party to solve a specific technical problem for the other party with technical knowledge. According to Article 878 of the Civil Code, a technical consultation contract is a contract concluded by one party to provide the other party with feasibility demonstration, technical prediction, special technical investigation, analysis and evaluation report on a specific technical project with technical knowledge. Technical service contract is a contract concluded by one party to solve specific technical problems for the other party with technical knowledge, excluding contract and construction project contract.
Legal basis: Article 878 of the Civil Code of People's Republic of China (PRC), a technical consultation contract is a contract concluded by a party with technical knowledge to provide the other party with feasibility demonstration, technical prediction, special technical investigation, analysis and evaluation report, etc. For a specific technical project. Technical service contract is a contract concluded by one party to solve specific technical problems for the other party with technical knowledge, excluding contract and construction project contract.