The foundry manufacturer or supplier sends detailed drawings and all requirements and reminds them to focus on the technical requirements. The main aspects include: Unit weight (processed or rough), the dimensional tolerance of the blank casting and the unit weight of the finished part, the material requirements, such as strength and hardness, surface coating requirements, and special heat treatment requirements.
Factors of price volatility. The price of OEM metal castings is mainly affected by pig iron price and exchange rate. Normally, if the exchange rate fluctuates more than 3 wt%, Foundry enterprises requires the user to adjust the price, if the iron price fluctuates more than 300 yuan/ton, Foundry enterprises also need to adjust the price. Of course, if the price of pig iron has been greatly reduced or the exchange rate has increased, the buyer should also reduce the casting price with the casting enterprise.

