If you are looking to get parts printed, Materialise can indeed help you in a few different ways.
Our i.materialise service is more focused on consumers, students, and jewelry designers etc. More information on the service and about 3D printing in general can be found on the i.materialise support site.
The Materialise OnSite service is mainly used by professionals who need rapid prototyping and manufacturing in an industrial environment. The OnSite support site has lots of information about 3D printing, materials and powder usage.