No: Date: Page: Original: ITSA-TD-2044/01 2004/09/27 1 of 4-39 U&D ELEVATOR ODBO (CHINA) All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner. 未经许可，不得复制。 电梯基础知识 Lift Know -how 4 电梯机房、井...

时间:2025-03-13 09:37栏目:行业资料