Hebei Shenzhou Steel Pipe Manufacturing Co., Ltd. inspected the insulation pipe equipment in March 2018. After nearly a month of negotiation and communication, a cooperative agreement was reached in April. Four PE anticorrosive and heat preservation production lines were signed at one time, with three vacuums of 90, 120, and 150. The fixed-diameter insulation pipe production line and large-diameter 3PE anti-corrosion insulation production line (ø219-ø2820). After receiving the order, the company's technology department made detailed technical plans for the site layout, product design, and supporting facilities. During the production and production process, we strictly control the quality, and adhere to the principle of product that assures and satisfies customers. After unremitting efforts of the company's employees, we finally submitted a satisfactory answer for customers within the prescribed time. The "Huang Jiqing" project has done the most effective escort and has been well received by customers.