Purchasing staff dining table and chairs, and chairs are made of a variety of materials through a series of technical processing, materials are the material basis of the table and chairs. Therefore, in addition to the basic requirements of function, aesthetics and craftsmanship, the design of the table and chair is closely related to the materials. To do this, the designer must be asked to do the following:
1. 熟悉原料类型、性能、规格及来源；
2. Design excellent products according to the existing materials, and make the best use of them;
3. 善于使用各种新材料来提高产品质量并增加产品美感。除了常用的木材、金属和塑料外，还有藤条、竹子、玻璃、橡胶、布料、装饰板、皮革、海绵、玻璃钢等等。然而，并非所有材料都可用于家具的生产。
What are the latest restaurant card seat sofa styles in 2019?
西餐厅、茶楼、桌椅采购人员餐桌和椅子的选用，对材质的选择也有一定的选择性，主要应考虑以下因素：
1. Processing technology: The processing technology of materials directly affects the production of furniture. For wood materials, in the process of processing, it is necessary to take into account the effects of moisture, such as shrinkage, isotropic cracking and porosity. Plastic materials should take into account their ductility, thermoplastic deformation and so on. The glass material should take into account its hot brittleness, hardness and the like.
2. 纹理和外观质量：材料的纹理和质地决定了产品外观质量的特殊感受。木材是一种具有自然美丽纹理、生动图像、良好手感、易于加工和着色的天然材料，是生产家具的优越材料。塑料及其合成材料具有模拟各种天然材料纹理的特点，并具有良好的着色性能，但它们容易老化且易受热变形。因此，家具的生产及其使用寿命和使用范围受到限制。
3. Economics: The economics of furniture materials include the price of materials, the processing labor consumption of materials, the utilization of materials and the richness of materials sources.
4. Strength: In terms of strength, the grip strength and the tamper resistance and elastic modulus should be considered.
5. Surface decoration performance: Under normal circumstances, the surface decoration performance refers to the feasibility of finishing, adhesive, engraving, coloring, ironing, and ironing.
