Synopsis
明天就是六一儿童节了，爸爸告诉豆豆一个好消息，爸爸的单位将组织亲子体验活动——“电梯制造大探秘”。豆豆听了兴奋得不得了，这会儿正缠着爸爸给他讲电梯的故事呢……
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Seller Image
Elevator Secrets (Manufacturing and Installation) (fine)(Chinese Edition)
ISBN 10: 7534199638
ISBN 13: 9787534199639
New
Hardcover
Seller: liu xing, Nanjing, JS, China
Seller rating 5 out of 5 stars
Hardcover. Condition: New. HardCover. Pub Date: 2022-09-01 Pages: 56 Language: Chinese Publisher: Zhejiang Science and Technology Press This is a popular science book that comprehensively introduces elevators. including the history of elevators (various lifting devices in history. modern elevators) birth. my country's first domestic elevator). elevator manufacturing (how to design. how to assemble. what are the main parts). elevator inspection. elevator installation. and various special and uncommon elevators. The whol. Seller Inventory # NY018061