For complete workflow compatibility, we recommend downloading the source format.The viewer version is intended exclusively for browser preview. In the source file, the following are fully preserved:✔ native scene structure✔ unsimplified materials✔ proper texture maps✔ proper object namingIf you plan to use this model in production, choose the source file.A large crane used in construction and industrial parks. It s circular base track allows the crane to swivel 360 degrees and it s impressive height allows it to move massive constructs.