First factor that causes the prices increasing on investment castings is fluctuation on raw materials cost.
During investment casting process, lots of raw materials required. Such as steel elements, sands, wax, chemical agents, welds, etc. The costs are keeping increasing these days due to the large volume demands from the market.
Second factor that causes the prices increasing on investment castings is increasing on labour costs.
Workers in investment casting factory mainly aged from 30 - 50. As time goes on, they can't afford to heavy and duty working. The children getting to start working. So, life pressure is not so big. They are choosing to reduce the working time. So, it's difficult to employ more workers to work in casting factory. The costs to employ them are getting higher now.
Third factor that causes the prices increasing on investment castings is increasing on environmental protection costs.
Nowadays, government require for more strict environmental protection solutions in factory. To achieve this requirement and protect the environment, investment casting factories have to be equipped with qualified environmental protection equipments. This increases the costs to invest the casting factory and caused the higher costs for production.
Fourth factor that causes the cost increasing on investment castings is fluctuation on exchange rates.
These days, the exchange rates between different currencies are keeping changing. The fluctuation is big. So, the prices of the investment castings are also keep changing. We mainly trade in USD. Due to the devalue of RMB, the prices are adjusting now.
Besides the above reasons, there're some other factors that will cause prices increasing on investment castings. We can discuss more later.