通风管道一般分为三种材质：白铁（镀锌）通风管道，玻璃钢通风管道，复合材料通风管道；
Ventilation ducts are generally divided into three types of materials: white iron (galvanized) ventilation ducts, fiberglass ventilation ducts, and composite material ventilation ducts;
通风管道广泛应用建筑工程，如：饭店，宾馆，酒店，医院，工厂，商场大楼，办公大楼等。
Ventilation ducts are widely used in construction projects, such as restaurants, hotels, hospitals, factories, shopping malls, office buildings, etc.
郑州中拓科技有限公司具有多年施工经验，专业从事工程通风设计、施工安装，排烟罩、通风管道等白铁制作产品，实现从设计、生产、安装的一站式服务。
Zhengzhou Zhongtuo Technology Co., Ltd. has many years of construction experience, specializing in engineering ventilation design, construction installation, and the production of white iron products such as smoke exhaust hoods and ventilation ducts, achieving a one-stop service from design, production, and installation.
通风管道
Ventilation ducts
通风管道  公司工程案例：郑州小南国饭店，河南人民医院，管城中医院，郑东新区等。
Engineering cases of ventilation duct companies: Zhengzhou Xiaonanguo Hotel, Henan People's Hospital, Guancheng Traditional Chinese Medicine Hospital, Zhengdong New Area, etc.
1、净化空调系统用通风管道 【镀锌版、不锈钢】
1. Ventilation ducts for purified air conditioning systems [galvanized version, stainless steel]
2、中央系统用通风管道【镀锌板、彩钢保温板】
2. Ventilation ducts for central systems [galvanized sheet, color steel insulation board]
3、环境控制系统用风管【镀锌板、不锈钢】
3. Air ducts for environmental control systems [galvanized sheet, stainless steel]
4、工业通风系统用风管【钢板、镀锌板】
4. Air ducts for industrial ventilation systems [steel plates, galvanized sheets]