Yongkang Dongrun Casting Industry&Trade Co,.Ltd
Aluminum Sand Casting,Gravity Die Casting,Aluminum Die Casting
Please Contact Us for more information
E-Mail:dongrun@dongruncasting.com


Description
2. After the resin sand core is more harder, we can take out it from mold. If necessary, the resign sand core must be dried. If so, it is free of the porosity in castings