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经济南市包装行业生产力促进中心撮合,济南粮油包装公司和山东省机械设计院签约,共同研发成功200升钢桶9层卷边技术,为企
Economy Nanning packaging industry Productivity Promotion Center, Jinan Cereals and Oils Packaging Company and Shandong Machinery Design Institute signed a contract to jointly develop a successful 200-liter steel drum 9-layer curling technology for enterprises