... manufactured by rapid mould (RTV/RIM molding) in vacuum casting machine or low press casting machine. ... such as Solid works, PRO-engineer (igs*, x-t*, step, *STP, stl*), CAD, JPG*, PDF* files etc. ... , and also make economical molds for use in China.do the molding production.3 Parts Production ... plastic and metal parts in China. Assembly is generally the most labor intensive step in the production process, ...