Quality and after-sales service commitment

I. Quality commitment letter

Qingdao Zhongwangtong Construction Development Co., Ltd. is committed to the quality of the products and responsible for the quality of the products within the quality assurance period. We hereby make the following commitment to quality：

1.Ensure that the tower materials provided are new products made with the latest technology and have not been used before, and meet the requirements in the bidding documents.

2.Ensure that the quality of the tower materials processed fully meet the technical specifications. And develop higher than the bidding documents requirements of the enterprise internal control standards to ensure product quality.

3.Ensure that the tower material can be installed smoothly, in the process of installation, our company will send technical personnel to actively cooperate to solve the problem.

4.We welcome the owners to send relevant technical and management personnel to our company for supervision, inspection and acceptance. Our company will provide convenience for their life and work.

5.Our company guarantees that the tower materials provided can withstand the test of the design conditions, there is no defect in the warranty period stipulated in the contract, to ensure the safe operation of the line.

6.For the raw materials used in this project, our company will choose a large steel mill with reliable quality as our supplier, and the incoming steel must have the original quality policy, and our company also needs to conduct strict quality inspection, before it can be used in this project. Our company can guarantee the quality of raw materials.

7.Our company guarantees to choose quality bolt suppliers as our suppliers. Our company requires that all fasteners must have the original delivery certificate and inspection report, and our company's quality inspection department shall strictly reinspect the fasteners when they enter the factory. Therefore, we can fully guarantee the quality of fasteners.

8.In order to avoid deformation and wear of tower materials during loading and unloading, our company will make special tools and send special personnel to track and monitor.

9.If the tower materials processed by our company are found to be inconsistent with the drawings and affect the installation, our company will be responsible for replacement and bear the corresponding losses.

II. After-sales service commitment

1.Our company's after-sales service organization a after-sales service department, is a practical experience, hard-working after-sales service professional team.

2.Our company will be in line with the "urgent user's urgent, think user's think" service purpose, according to the user's interests above all. Strictly implement the requirements of Quality Assurance Manual and Service Control Procedure of our company, and provide thoughtful and meticulous service to users to meet their needs.

3.After the completion of processing, our after-sales service department, on behalf of the user, will conduct quality acceptance inspection of the finished tower material in our company. At the same time, but also to the packed tower material is not less than 70% of the unpacking acceptance, to ensure the quality of the factory products, accurate quantity.

4.After the processing of the steel tower is completed and sent out, our company will be personally led by the project commander, together with engineering and technical personnel to form a site service team, stationed at the construction site at the same time, handle the handover procedures with the construction unit, and help solve the problems on the site until all the steel tower is completed.

5.At the time of delivery, our company will provide product certificate, design change notice, tower material packing details, inspection report and other information to users and construction units along with the tower, and provide technical documents of the products to users free of charge at any time.

6.We guarantee that we will carry out the packing and shipping according to the requirements of the bidding documents, handle the transportation insurance at the same time, and be responsible for the claims for the losses caused by the transportation.

7.When the tower material is delivered to the designated place and the user accepts it, if the quantity and quality of the tower material cannot meet the requirements of the contract, our company will replace the tower material free of charge and bear the loss caused thereby.

8.The drawings or samples of each part processed by our company will be stored as technical data. Therefore, in the process of construction and operation, if there is any missing or damaged parts, our company will be able to deliver the replacement parts to the construction site within 24 hours after receiving the notice, and our professional and technical personnel will arrive at the construction site within 24 hours.

9.During the quality guarantee period stipulated in the contract, if the tower material is defective, our company will timely replace it according to the time required by the user, and bear the loss caused thereby. The tower material guarantee provided by our company is brand new. If the tower material does not conform to the contract requirements, our company will bear all the responsibilities.

10.Our company will provide 3% bolt loss with the tower material, and free of charge for the railway transportation department and construction units to provide soft sling loading and unloading tower material.

11.Welcome the buyer to send personnel to our company for manufacturing supervision, our company will actively cooperate with their work, and provide all convenience in life.