... sample is made before mode-making on the basis of the appearance of the product or structure drawing, to detect whether ... Nylon3) Aluminum, copper, zinc,Brass, stainless steel,sheet metalFunctions of prototype(1) Inspecting layout Prototype is visible and tangible, which ... used, including nylon, metals, and elastomers. Rapid prototype (RP) laser sintering can provide a competitive edge in your product ...