Biko tinye eserese 3D gị (ọkacha mma STEP na usoro IGS). Enwere otutu faịlụ? Tinye faịlụ gị niile na folda wee mpịakọta folda ahụ n'ime faịlụ ZIP ma ọ bụ RAR. (Ụdị faịlụ: zip | jpg | pdf | dxf | dwg | nzọụkwụ | stp | igs | x_t | prt)