Prototype Material
There are a lot kinds of materail you can choose from,about the plastic material,you can consider ABS,PP,PC,PEEK,POM,HDPE and more

ABS: Acrylonitrile butadiene styrene have three colors for your reference,we have black ABS;white ABS;original ABS

Polyoxymethylene (POM), we have black and white color,and the surface can not paint

High Density Poly Ethylene (HDPE) have white and black color can be choose from,if you do not need high density,then PE material is available for you.

Nylon plastic,you can called PA.if you need better strength,then you can consider PA+GF

Polycarbonates is called PC,we have white and black/clear color,and we can do highly polished in the surface of PC.

Polyether ether ketone called PEEK.it is a kind of material have good strength and good properties

PMMA or acrylic can be used for car lights parts,after highly polished,the surface is shiny.

Polypropylene (PP) is easy to shrink and can not be paint,but this is a kind of soft plastic material
Prototype Material-Metal
We have lots of metal material you can choose from,just like copper,brass,all series of aluminum;staineless steel and more