○ The origin of Korean milkware can be found from the casting of bronze ware, and the manufacturing method of this milkware is divided into bangjja milk made from a single (dudrim) and casting made from a mold (moor on a frame).

Bangjjayugi, also known as Hyangdong, is made of traditional musical instruments or tableware, and casting yugi is made by using molds called chudong.

○ Park Gap-sul has been engaged in foundry organic production for more than 50 years and maintains the tradition of traditional casting abandonment by producing and taking part in the traditional cloud-style spinning frame, which is disappearing, so it is necessary to preserve the tradition.