Recycled waxes were used not only to make ingate but also to widely press wax pattern for civil and commericial investment castings in USA and Europe since the 1990 s.

• 20世纪90年代以来,美、欧各国改变了回收模料只用作浇道的传统习惯,回收再生模料应用与日俱增,已广泛用来压制民用和商用精铸件的蜡模。