... Plastic and metal part life from herePrototyping Way Material Tolerance Stereolithography (SLA) Technician's Choice, Semi-Flexible, PE-Like Durable, ... ,POM,Nylon ,PU and so on+/- 0.003" Metal prototypes Aluminum, Stainless Steel, Carbon Steel, 17-7 PH, Brass ... auto parts, etc1 Rapid Prototype Making (thermoforming making)CNC, SLA(Stereolithography) and SLS(Selective Laser Sintering), 4~7days lead time. ...