KS B ISO TS 8100-21-2020 Lifts for the transport of persons and goods —Part 21: Global safety parameters(GSPs) meeting the global essential safety requirements(GESRs)
2020KS B ISO TS 8100-21-2020 Lifts for the transport of persons and goods —Part 21: Global safety parameters(GSPs) meeting the global essential safety requirements(GESRs)