Hebei Huadun Pipeline Manufacturing Co., Ltd. signed the vacuum sizing modification production line of Qingdao Haixi Plastic Machinery Co., Ltd on March 20, 2021. During the epidemic period, our company made great efforts to produce, innovated on the basis of the original, and achieved the best performance and provided the best service. As an old customer of Qingdao Haixi Plastic Machinery Co., Ltd., Hebei Huadun Pipe Manufacturing Co., Ltd. has carried out transformation and innovation on the original basis. Thank you for your trust and support. Due to the urgent delivery of the pipe, our company loaded the truck and delivered the goods on April 27, 2021 with the unremitting efforts of the company's staff, which gave a satisfactory answer to the customer. Then the debugging personnel of our company also set out to install and debug your company, so as to meet the needs of customers and expedited the production of tubes, which won your company's support and satisfaction. Our company to provide customers with the best service, customer satisfaction is my company's unremitting pursuit.