DLJ.Since its establishment in 2017, DLJ has specialized in the R&D and manufacturing of high-speed, heavy-duty, precision gear transmission equipment, with its core product being the gearbox—a critical component for wind power generation equipment. With over 30 years of industry expertise, the company's team has not only successfully developed main gearboxes for the 1.5MW to 20.0MW power range for leading domestic and international wind turbine manufacturers but also actively provides top-tier aftermarket services including technical training, operational diagnostics, maintenance, and upgrades. Through deep expertise in wind turbine transmission chain design and advanced manufacturing capabilities, DLJ has emerged as a key technological pioneer with formidable R&D strength in the green clean energy sector.