UNE-EN ISO 20321:2020 Petroleum, petrochemical and natural gas industries - Safety of machineries - Powered elevators (ISO 20321:2020) (Endorsed by Asociación Española de Normalización in May of 2020.)
2020UNE-EN ISO 20321:2020 Petroleum, petrochemical and natural gas industries - Safety of machineries - Powered elevators (ISO 20321:2020) (Endorsed by Asociación Española de Normalización in May of 2020.)