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Property, Plant and Equipment, Net | 6 Months Ended
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Jun. 30, 2024
Property, Plant and Equipment, Net [Abstract] |
PROPERTY, PLANT AND EQUIPMENT, NET | 9. PROPERTY, PLANT AND EQUIPMENT, NET Property and equipment consisted of the following:
|  | December 31, 2023 |  |  | June 30, 2024 |
|  | RMB |  |  | RMB |  |  | US$ |
|  |  |  |  | （Unaudited） |
Leasehold improvements |  |  | 754 |  |  |  | 754 |  |  |  | 104 |
Computer and network equipment |  |  | 1,930 |  |  |  | 1,939 |  |  |  | 267 |
Manufacturing equipment |  |  | 12,501 |  |  |  | 14,006 |  |  |  | 1,927 |
Office equipment |  |  | 187 |  |  |  | 291 |  |  |  | 40 |
Motor vehicles |  |  | 3,914 |  |  |  | 3,559 |  |  |  | 490 |
Construction in process |  |  | 1,056 |  |  |  | - |  |  |  | - |
|  |  | 20,342 |  |  |  | 20,549 |  |  |  | 2,828 |
Less: loss of impairment |  |  | (1,896 | ) |  |  | (1,896 | ) |  |  | (261 | )
Less: Accumulated depreciation |  |  | (6,682 | ) |  |  | (9,147 | ) |  |  | (1,259 | )
|  |  | 11,764 |  |  |  | 9,506 |  |  |  | 1,308 |
For the six months ended June 30, 2023 and 2024, the Group recorded depreciation expenses of RMB1,269 and RMB2,606 (US$359), respectively. The loss of the impairment was due to the permanent withdrawn of a production line made in 2023.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
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