www久久精品,国产一区二区三区美乳学生,国产伦精品一区二区三区精品,亚洲国产欧美精品一区二区三区,一区二区三区在线免费观看,亚洲精品国产一区二区,插吧插吧天天影视,久久久久亚洲精品中文第一幕

1. Our machine warranty period is one year. Parts can be replaced free of charge during the warranty period.
2. The software of our system can be upgraded for free lifetime.
3. According to the model purchased by the customer, we recommend wearing parts and consumable parts. Customers purchase according to their needs.
4. We have sufficient accessories and parts in our factory , and can ship to client timely.