部品直接構成成品的基本組成部分。與大連數控加工零件不同的是它不一定是零件，也可以是半成品或其它公司的成品，如：一幢房子其中配有空調，那么相對房子空調就是一個部品；如果你是生產空調的，而壓縮機你不生產，那么相對空調來說壓縮機就是一個部品。與原材料不同的是它是經過加工或者成型可以直接裝配或使用于成品上的組成部分，如：空調上的按鈕是一個部品，組成按鈕的塑膠卻不是一個部品。部品包括零件、外購半成品、外購成品。

Parts directly constitute the basic components of the finished product. Unlike Dalian CNC machining parts, it may not necessarily be a part, but can also be a semi-finished product or a finished product from other companies. For example, if a house is equipped with air conditioning, then the air conditioning in the house is a component; If you produce air conditioners and you don't produce compressors, then compressors are just a component compared to air conditioners. Unlike raw materials, it is a component that can be directly assembled or used in finished products through processing or molding. For example, the button on an air conditioner is a part, but the plastic that makes up the button is not a part. Components include parts, purchased semi-finished products, and purchased finished products.