1、经济性：
1. Economy:
A：根据规范，同等管径，板厚降低10-15%。（主材造价降低10-15%）
A: According to the specification, the plate thickness is reduced by 10-15% for the same pipe diameter. (Cost of main materials reduced by 10-15%)
B：同等条件下满状辅材（吊键等）结果简单，数量少，安装辅材造价降低30%
B: Under the same conditions, the results of full-shape auxiliary materials (hanging keys, etc.) are simple, the quantity is small, and the cost of installation auxiliary materials is reduced by 30%
C：施工时吊装效率比矩形风管提高一倍。
C: The lifting efficiency is twice as high as that of rectangular air duct during construction.
D：同等条件下，可将举行风管低速送排风变为高速送排风，系统设计可减少风管总量，不仅经济，而且节约空间
D: Under the same conditions, the low speed air supply and exhaust of the air duct can be changed into the high speed air supply and exhaust. The system design can reduce the total amount of air duct, which is not only economical, but also saves space
2、可能性：
2. Possibility:
A：同样板厚及同等管径下，螺旋风管强度高。
A: With the same plate thickness and pipe diameter, the spiral duct has high strength.
B：风管外表为圆形，外形美观。
B: The air duct is round in shape and beautiful in appearance.
C：同等截面下，圆形风管比矩形风管结构张力合理，大幅度提高风管刚性，明显降低颤震噪音。
C: Under the same section, the structural tension of circular air duct is more reasonable than that of rectangular air duct, which greatly improves the rigidity of air duct and significantly reduces the chattering noise.
D：同等长度下，法兰连接数量少，蜜蜂性能优于矩形风管，使系统通风质量大大提高。
D: Under the same length, the number of flange connections is small, and the bee performance is better than the rectangular air duct, which greatly improves the ventilation quality of the system.
3、快捷性：
3. Fastness:
A：率施工，使用于工期短的大型项目。
A: High efficiency construction, used in large projects with short construction period.
B：机械化制作，快速。
B: Mechanized production, fast and efficient.
C：连接法兰数量少，吊装连接工作量减少约50%。
C: The number of connecting flanges is small, and the lifting connection workload is reduced by about 50%.
D：小管径螺旋风管单吊点，吊装快速。
D: Single lifting point for small diameter spiral air duct, fast and efficient lifting.
E：无需施工现场加工工序，减少现场作业人员及管理程序。
E: There is no need for processing procedures on the construction site, and on-site operators and management procedures are reduced.
F：与矩形风管相比，配套异形管件标准化程度高，吊装简单，差错几率大大降低。
F: Compared with rectangular air duct, the supporting special-shaped pipe fittings are highly standardized, easy to lift, and greatly reduce the probability of error.
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