通风99无码熟妇丰满人妻啪啪的作用是使加速空气的循环，帮助室内的空气的循环，降低有害气体和温室气体的浓度的一种基本设施，具有一定的防火性能，在输送有害气体时有一定的抵御性能。

　　The ventilation pipe is the role of the accelerating air circulation and help the indoor air circulation, reduce the concentration of harmful gas is a kind of basic facilities and greenhouse gases, has certain fire performance, the performance of the protection in the transport of harmful gases.

　　螺旋式通风99无码熟妇丰满人妻啪啪作为一种新型的风管施工工艺，其优势不言而喻、美观、强度大、机械主动化水平高、加工制造速度快以及能削减装置任务量，大大进步了任务效率等。

　　Spiral type ventilation pipe as a new type of wind pipe construction technology, its advantage is self-evident, beautiful appearance, high strength, high degree of automation, mechanical processing speed and can reduce device workload, greatly improve the efficiency of the task.

　　外观质量高。成形后的风管内壁润滑，外壁流利;风管强度大。由于外壁咬口构成的螺旋线棱筋平均散布，起到一个平均增强筋的效果，其单元强度大于通俗咬口式风管;

　　High quality appearance. The inner wall of the air pipe is lubricated and the outer wall is fluent; the air duct is strong in intensity. Because of the average dispersion of the spiral ribs of the screw formed by the outer wall, the strength of the reinforcing bar is stronger than that of the popular bite type wind pipe;

　　风管密封功能优越。由于是机械加工，能削减报酬操作掉误，确保风管紧密，漏风量远小于现行标准规则值;资料用量削减。

　　The wind pipe sealing function is superior. Due to mechanical processing, the utility model can reduce the remuneration, operate the mistake, ensure the tight air pipe, and the air leakage is much smaller than the current standard rule value; the data consumption is reduced.

　　因为螺旋式风管单元强度大于通俗风管，故同类规格风管所用的卷材厚度可以减小一个型号，且风管节长比通俗咬口式风管大，相同长度的风管节口数目分明削减。

　　Because the spiral wind pipe unit strength is greater than the popular wind, the wind pipe specifications with similar membrane thickness can be reduced to a model, and the wind pipe is longer than the popular bite type wind pipe, the same length of the wind pipe port number clear cut.

　　因为螺旋式风管单元强度大于通俗风管，故同类规格风管所用的卷材厚度可以减小一个型号，且风管节长比通俗咬口式风管大，相同长度的风管节口数目分明削减。

　　Because the spiral wind pipe unit strength is greater than the popular wind, the wind pipe specifications with similar membrane thickness can be reduced to a model, and the wind pipe is longer than the popular bite type wind pipe, the same length of the wind pipe port number clear cut.

　　领导边摸边吃奶边做爽在线观看愿以佳的服务意识，迎接八方来客，诚恳与国内外各界朋友精诚合作，共创美好的前程。欢迎大家前来参观洽谈!

　　We would like to serve the eight guests with the best sense of service, and sincerely cooperate with friends from all walks of life at home and abroad for a better future. Welcome to visit and negotiate!

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