Also known as "lost-wax casting". According to the product requirements of the customer, molds are designed and processed. The wax material is pressed into the mold to form a product wax mold, which is bonded with the sprue cup and runner wax molds to form a wax tree. After coating the surface of the wax tree with multiple layers of refractory slurry and sand material, a sel em ol i wokim. Ol i meltim ol waks samting insait long sel long melt long hat, na bihain ol i kapsaitim metalten metal i go insait long sel ol i bin rausim long bikpela tempereja. Bihain long metal ol i bin tanim i kamap strong na i kol, Tru long ol rot bilong wok bihain long prosesim olsem katim na klinim, ol i kisim ol samting ol i nidim bilong wokim ol samting bilong ol, ol i kisim ol samting i kamap long ol samting bilong ol samting i stap long en. ol straksa, hai pes rafnes, na hai dimensenel akuresi. Em i nidim liklik o nogat prosesing na em i wanpela edvans klostu-net-sep proses.
