In 2019, the president of Centrum Hydrauliki DOH sp. z o.o. visited Liaoning Xinfeng Mining (Group) Co., Ltd.  for a field visit, marking a solid step forward in the cooperation between the two parties. During the visit, the president and his party went deep into the production workshop and R&D center to learn in detail about Xinfeng's strength and achievements in product manufacturing process, quality control system and technology research and development, and spoke highly of the company's professional capabilities and international operation capabilities. This visit not only enhanced mutual trust between the two parties, but also laid a solid foundation for deeper cooperation in the future.