polyurethane elastomer pressurized plastic injection machine
- Sep 04, 2017-
Ordinary sand casting includes wet sand type, dry sand type, chemical hardening sand type casting. Special casting according to the different molding materials, but also can be divided into two major categories: a class of natural mineral aggregates as the main modelling materials, such as investment casting, shell casting, negative pressure casting, clay casting, solid casting, ceramic casting, etc. a kind of metal as the main mold material. such as metal casting, centrifugal casting, continuous casting, pressure casting, Low-pressure casting and so on.