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2019年新年伊始，浙江荣晟环保纸业股份有限公司与山东信和造纸工程股份有限公司签订了4600/750/min长网多缸高强瓦楞纸机升级改造项目。
改造后，纸机车速由500m/min提高到750m/min，压榨为四辊三压，干燥部为无绳引纸，机型将达到国内先进水平，也标志着公司在板纸机技术及制造方面跨入了国内先进行列。升级改造项目计划于2019年7月底完成。
