Fitness machine BORK
BORK D670 treadmill https://www.bork.ru/eShop/Sports-Equipment/d670/?parent=Bork-HomeSports-Equipment
Treadmill D671 https://www.bork.ru/eShop/Sports-Equipment/d671/
Exercise bike BORK D672 https://www.bork.ru/eShop/Sports-Equipment/d672/
Who works in V-Ray version lower than 3.1 be careful, in the materials in the BRDF section there is a Microfaset GTR ( GGX ), Your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward – which is preferable for you
For Corona render, it is recommended to put the version at least 1.5, since the glossiness of the materials is configured with PBR in mind
Enjoy your use and successful projects =)