共板法兰风管
Common flange flanges
共板式法兰风管又称无法兰风管，其制作形式比传统的矩形风管加工速度更快捷、更方便、更小的漏风率。其优点是节省材料，减少工程投资；漏风量小，降低能耗，节省运行费用，颇受施工企业欢迎。美国和欧洲等发达国家从九十年代开始采用风管的无法兰连接。
Common plate flanged duct, also known as non-blue duct, is faster, more convenient and less leakage rate than the traditional rectangular duct. Its advantages are saving materials, reducing project investment, small air leakage, reducing energy consumption, saving operating costs, which are very popular with construction enterprises. The developed countries in the United States and Europe have adopted flanged connections since 90s.
产品特点：
Product characteristics:
镀锌钢钣风管是目前空调工程、通风排烟系统中应用最传统、最广泛的产品。
Galvanized steel sheet air duct is the most traditional and widely used product in air conditioning engineering, ventilation and smoke exhaust system.
镀锌钢钣风管内壁光滑、阻力小、气密性好、承压强度高。钢板风管现场制做方便，与土建工程配合紧密，能适合非常复杂的通风工程。
The galvanized steel sheet air duct has smooth inner wall, small resistance, good air tightness and high bearing strength. The steel plate air duct is easily manufactured on site and closely cooperates with civil engineering. It is suitable for very complicated ventilation engineering.
其造价比不锈钢板风管要低，用途十分广泛。
Its cost is lower than that of stainless steel plate, and its use is very extensive.
适用范围：
Scope of application:
镀锌钢钣风管广泛应用于各种通风、空调系统中。
Galvanized steel sheet air duct is widely used in various ventilation and air conditioning systems.
生产范围：
Scope of production:
风管分圆型和矩形两种，可根据广大用户的不同需要生产各种型状、各种规格型号的风管。
Air ducts are divided into circular and rectangular types, which can produce various types and specifications of air ducts according to the different needs of the vast number of users.