1. Product Quality Assurance: We promise that all the mechanical products such as screening and conveying equipment we sell meet national and industry standards and the strict quality requirements set by us. We guarantee that under normal use and maintenance conditions, the products will be provided with free quality warranty service within one year from the date of delivery. If there is any non-human damage to the product, customers can contact us for free repair or replacement. 2. User Privacy Protection: The confidentiality of customer information and transaction information is of great importance to us. We strictly abide by the laws and regulations on privacy protection and promise not to disclose customers' personal information to any third party unless the customer agrees in writing or in accordance with the law. 3. Return and Exchange Policy: We provide reasonable return and exchange services. If the product has quality problems or is damaged during transportation, customers have the right to apply for return or exchange within 7 days after receipt. The returned products must be in their original condition and include all accessories and instructions. 4. After-sales Service Commitment: We have set up a professional after-sales service team, including technical support and customer service personnel, to provide customers with all-round support and assistance. We promise to provide timely, efficient and satisfactory after-sales service to solve any problems encountered by customers in the process of using the product. 5. Legal Compliance Statement: Our company strictly abides by local laws and relevant international trade regulations to ensure that all products comply with applicable laws, regulations and standards. We conduct legal and compliance training regularly to ensure that employees understand and implement relevant laws and regulations.