... and metal 3.4~7delivery time 4.0.02mm tolerance cnc aluminum prototype, toy prototypes, electronic prototypeGeneral Feature: 1.Prototyping Way ... :CNC/SLA/SLS/FDM/Precision machining2.Material: abs,pc,pmma,pe,pp,pa66,pu,rubber,silicone,aluminum,iron,zinc,steel ... ,POM,Nylon ,PU and so on+/- 0.003" Metal prototypes Aluminum, Stainless Steel, Carbon Steel, 17-7 PH, Brass, Phosphor Bronze ...