Production enterprises are a link in the whole production supply chain. For example, raw material suppliers supply OEM, machining, a product manufacturer and a complete machine manufacturer.

So the foundry corresponds to two aspects.

On the one hand, suppliers: such as manufacturers of pig iron and scrap steel, mold factories, manufacturers of various auxiliary materials, etc.

On the other hand, customers: most of the blanks produced by casting need machining.

For example, the reducer box in foundry is painted, which is supplied to machining for milling, grinding and drilling, and then supplied to reducer factory, which reassembles and sells the finished products to customers who need reducers.