Recently, the review team including Shandong Internal Combustion Engine Quality Inspection Station and Quality Supervision and Inspection Center of National Agricultural Bureau came to Weichai Heavy Machinery Co., Ltd. Since the mid-speed engine factory moved to Binhai industrial park, it needed re-approving for production license in accordance with "Internal Combustion Engine Production License Implementation Details". Experts reviewed Weichai Heavy Machinery's quality management responsibilities, production resource supply, and product quality inspection. The results showed everything was in line with the requirements, and Weichai Heavy Machinery successfully passed the production license field verification.