用心服務(wù)customer service
為何要求兒童應(yīng)由有行為能力的成年人陪同搭乘自動扶梯？
why children should have required by the ability of conduct adults accompanying take escalator?
專業(yè)化的整梯解決方案服務(wù)運(yùn)營商
Professionalism of the overall solution for service providers
