Main variables;Total G.1 % enterprises with 3D printing;1.48 G.1.A % enterprises that used their own 3D printers (1);51.85 G.1.B % enterprises that used 3D printing services provided by another company (1);60.94 G.2.A % enterprises with 3D printing for sales models or prototypes (1);44.23 G.2.B % enterprises with 3D printing models or prototypes for internal use (1);47.20 G.2.C % enterprises with 3D printing models or prototypes products for sale, excluding prototypes or models (1);15.52 G.2.D % enterprises with 3D printing models or prototypes products for internal use, excluding prototypes or models (1);19.92