管件的弯曲是锅炉、制冷等行业生产中常见的工序，而在金属家具、办公用品生产行业中也应用广泛。弯管质量的好坏，不仅影响着生产技术水平，同时也决定着产品的品质。在不同的行业中，有电动、液动甚至ＣＮＣ系统的弯管机，采用着各种不同的弯管技术。我们在生产文件碎纸... Pipe bending is boiler, refrigeration and other industries in the production of common processes, but in the metal furniture, office supplies industry is also widely used. Elbow quality is good or bad, not only affects the level of production technology, but also determines the quality of the product. In different industries, electric, hydraulic and even CNC system of pipe bender, using a variety of elbow technology. We are producing paper shredding ...