Zhengzhou Hengyin Stockbreeding Machinery Co., Ltd is a modern and high-tech enterprise integrating design, research and development, standard production, engineering construction and machinery trade.

• 郑州恒银畜牧机械有限公司是一家集设计研发、标准化生产、工程施工与器械贸易为一体的现代化高科技企业。