中国建材包装工业协会理事郑志文研制成功的夹筋强力包装袋和成套设备机组,最近由中国人民解放军南空军械厂和江苏吴江县坛丘包装纸袋设备厂联合定点生产。这套设备生产的是两层牛皮纸中间用防水粘结剂夹麻线或棉线作经纬的夹筋包装纸袋,用于取代四层或六层牛皮纸纸水泥袋, Zheng Zhiwen, director of China Building Materials Packaging Industry Association, successfully developed a strong bag and complete set of equipment with strong gluing strength. Recently, it was jointly produced by PLA Air Force Nanshou Ordnance Factory and Tanqiu Packaging Paper Bag Equipment Factory in Wujiang County, Jiangsu Province. This equipment is produced by two layers of kraft paper with waterproof adhesive binder twine or cotton thread for the folder of tendon packing paper bag, used to replace the four or six kraft paper bags,