Castings. We need to check whether we can use sand casting process to produce blank castings, some may use wet sand, some may use resin sand, or shell casting, or automatic molding process. Green sand is cheaper and shell casting is the most expensive. Related factors include dimensional tolerance, surface quality, structural complexity, annual demand, weight and size, etc. These factors will affect the cost of blank castings. Of course, if these processes can't meet the requirements, then we can't produce. 2. Confirm whether we can meet the processing requirements. For normal processing work, most foundries with processing capacity will be able to process in-house. Otherwise, they will have to entrust other professional processing workshops for processing, which is not a good choice, because the cooperation between OEM and processing workshops may cause more difficulties and delay delivery. Because the quotation needs to consider the related processing equipment, working hours and price, it is difficult to calculate the processing cost. In addition, the annual demand is also an important factor affecting the processing cost. 3. Consider other costs. Other costs include packaging, surface treatment, painting, inland and sea transportation, and of course exchange rate. These costs will be related to the specific needs of customers. Having said that, you may not know how to calculate the casting cost. In fact, it is not simply to make an accurate quotation or price evaluation. There are many factors that affect the price. However, we can still provide a general price range for reference. A) Used for blank castings without machining. B) For the processing cost, whether it is simple processing or rough processing, the price ranges from 1 yuan/kg to 5 yuan/kg. Complex or high-precision processing, the price ranges from 5 yuan/kg to 10 yuan/kg.