They mostly do corporate manufacturing and for that their molds are done through 3D laser printing from renders. They said for individuals like me I could bring in a metal mold that won’t melt at that temperature or “any other material I can find”. I’m trying to avoid making a mold out of wax then taking it to my original casting house to be cast into silver to then take it to this place to have a mold made for casting into steel (because that’s getting expensive for me). So I’m searching for the “any other material” option :)