1 金属薄板： 1 metal sheet: 普通薄钢板：有良好的加工性能和结构强度，但易于生锈； Plain sheet steel: good machining performance and structure strength, but easy to rust; 镀锌薄钢板：表面镀锌，有防锈作用，一般用来制作无酸雾作用的潮湿环境中； Galvanized thin steel plate: surface galvanizing, has anti-rust effect, and is used to make the wet environment with the effect of acid fog; 铝及铝合金板：加工性能好，耐腐蚀，摩擦时不易产生火花，常用于有防爆要求的通风系统中； Aluminum and aluminum alloy plate: good processing performance, corrosion resistance, not easy to produce spark during friction, often used in the ventilation system with explosion-proof requirements; 不锈钢板：具有耐锈耐酸能力，常用于制作寒湿、寒酸的排风管道及化工环境中需耐腐蚀的通风系统； Stainless steel plate: it has the ability of anti-rust and acid resistance. It is often used in the production of cold wet, cold exhaust ducts and in chemical environment. 塑料复合钢板：在普通薄钢板表面上喷上一层0.2-0.4mm厚的塑料层，常用于防尘要求较高的空调系统和-10度—70度温度下耐腐蚀系统的风管； Plastic composite steel plate: a layer of plastic layer of 0.2-0.4mm is sprayed on the surface of ordinary thin steel plate, which is often used in the air conditioning system and the air duct of the anti-corrosion system at the temperature of -10 degrees and -70 degrees. 2 非金属材料： 2 non-metallic materials: 硬聚氯乙烯塑料板：适用于有酸性腐蚀作用的通风系统，具有表面光滑、制作方便等优点，但不耐高温、不耐寒，只适用于0—60摄氏度的空气环境，在太阳辐射作用下易脆裂； Hard polyvinyl chloride (PVC) plastic board: suitable for acid corrosion effects of ventilation system, has the advantages of smooth surface, easy to make, but not high temperature resistant, not cold, only applies to 0 to 60 degrees Celsius of air environment, under solar radiation is brittle crack; 玻璃钢：具有轻质、高强、不燃、耐腐蚀、耐高温、抗冷融等特性。 Glass reinforced plastic: it has light quality, high strength, non-flammability, corrosion resistance, high temperature resistance and cold and melt resistance.