< p align = "justify" > < strong > after sales service scope 1: Quality assuranceThe warranty period is within 12 months after the product is delivered to the user for use. After receiving the user's maintenance notice, reply within 12 hours, and rush to the site within 24 hours if on-site maintenance is required. During the warranty period, the product is repaired due to improper use (i.e. the accident caused by Party A's human reasons or abnormal operation), and the company only charges the cost (i.e. replacement of parts) and travel expenses. 2: After sales service guaranteeAfter the expiration of the warranty period, our company will serve the users as usual. After receiving the maintenance notice from the user, we should reply within 12 hours. If we need on-site maintenance, we should rush to the site within 24 hours. We only charge the cost (i.e. the cost of replacing parts), travel expenses and labor costs. 3: Long term supply of spare parts. The company has provided hundreds of sets of tower steel structure equipment medium repair and overhaul services for the steel structure industry of iron tower, and has set up a special spare parts warehouse, which can meet the long-term supply needs of users.