U型卡扣广泛应用于各种食品、化工产品的包装工艺中，起到有效保证需封口工序介质的储存性能的作用，卡扣在产品包装中发挥十分重要的作用。 U50型手动打卡机是一种适用于火腿肠两端，锚固剂等产品封口包装，以及其它封口工序的专用设备，其功能是把U50型卡扣紧固在封口工序的两端。U50型卡扣箍紧后有足够的密封性，以保证需封口工序介质的储存性能，U50型卡扣以及U50型手动打卡机是食品及化工产品加工厂的必备封口设备。 U50型卡扣各项技术指标均超过同等进口产品，可与POLY、TECHOPACK打卡机配套，规格型号齐全，502、503、504、506、509、711、713、702，能在任何厂家打卡机上顺利使用。U50型卡扣广泛适用于各种火腿肠、水果包装、大蒜包装、超市封口包装、食用菌、锚固剂等轻包装。 U50型卡扣及U50型手动打卡机是集国内外同类设备的优点于一身，结合用户打卡工艺自行开发的产品，该卡扣及打卡机产品具有性能可靠，结构合理便于维修等特点，受到国内外客户广泛好评

U buckle is widely used in packaging process of various food and chemical products. It plays an important role in ensuring storage performance of sealing process medium. Buckle plays a very important role in product packaging. The U50 type manual punch card is a special equipment suitable for the sealing and packaging of ham sausage, anchorage agent and other sealing processes, and its function is to fasten the U50 buckle to the two ends of the sealing process. The U50 type buckle is tightened enough for sealing, so as to ensure the storage performance of the sealing process medium. U50 buckle and U50 manual punch card are necessary sealing devices for food and chemical products processing plants. The technical specifications of the U50 buckle are all over the same imported products, and can be matched with POLY and TECHOPACK punch card machines. The specifications and models are complete, 502, 503, 504, 506, 509, 711, 713 and 702, which can be used successfully in any manufacturer's punch card machine. U50 type buckles are widely used in various ham sausage, fruit packaging, garlic packaging, supermarket sealing packaging, edible mushrooms, anchorages and other light packaging. The U50 type buckle and U50 manual punch card are the products developed by combining the advantages of the similar equipment at home and abroad, combined with the user punch card technology. The card buckle and punch card product has the characteristics of reliable performance, reasonable structure and easy maintenance. It is widely praised by domestic and foreign customers.