Steel pipes or aluminum alloys are often used as frames, which are strong and durable, can bear heavy weights, and are suitable for frequent use by students. Steel pipe frames are often sprayed with plastic to prevent rust and corrosion and extend service life; aluminum alloy materials have the advantages of light weight, high strength, corrosion resistance, etc., and are more convenient to carry and install. 137.
Wooden materials: such as solid wood multilayer boards, etc., the materials are environmentally friendly, with beautiful textures, giving people a natural and warm feeling, and can add a cultural atmosphere to the campus environment. Wooden seats and backrests are generally processed by grinding, painting and other processes to make their surfaces smooth, improve comfort, and enhance wear resistance and stain resistance. 17.
Plastic materials: They are light, easy to carry and clean, low in price, and have rich and diverse colors, which can meet the decoration needs of different campus environments. However, their durability is relatively poor, and they are prone to wear, aging and fading. 4.
Composite materials: Combining the advantages of different materials, such as metal frames with wooden or plastic seats and backrests, taking into account both firmness and comfort, and at the same time controlling costs to a certain extent.
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