v3.26.1
Property, plant and equipment, net (Details Narrative)
6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Jun. 30, 2025
CNY (¥)
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 10,454 ¥ 72,086 ¥ 116,515