NS-EN ISO 20957-8:2017 Stationary training equipment — Part 8: Steppers, stairclimbers and climbers — Additional specific safety requirements and test methods (ISO 20957-8:2017)
2018NS-EN ISO 20957-8:2017 Stationary training equipment — Part 8: Steppers, stairclimbers and climbers — Additional specific safety requirements and test methods (ISO 20957-8:2017)