Recently, Junhe has signed an annual fixed-point supply agreement with a large domestic construction machinery manufacturing enterprise for bearings, officially establishing a long-term strategic cooperation relationship. The main products are tapered roller and self-aligning roller series bearings, which are matched with loader and excavator walking mechanisms. In the early stage of cooperation, the company's technical team deeply communicated with customers' working conditions, customized and optimized the bearing load structure and dust seal design. After 3 months of on-site installation verification, the product's service life was better than the customer's original accessories under heavy load and high dust conditions. The landing of this cooperation marks a breakthrough expansion in the engineering machinery supporting sector market and continuous improvement of the customer layout across the industry.