... prototype 1.CNC,SLA/SLS/FDM/precision machining 2.Material: plastic and metal 3 ... ,pa66,pu,rubber,silicone,aluminum,iron,zinc,steel etc.3.Lead-Time:3~5days delivery4.Tolerance ... PMMA,PVC,PVE, aluminum Zinc alloy, copper, iron, steel. +/- 0.005" Fused Deposition Modeling (FDM) production- ... so on+/- 0.003" Metal prototypes Aluminum, Stainless Steel, Carbon Steel, 17-7 PH, Brass, Phosphor Bronze, Copper, ...