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Related party balances and transactions (Details Narrative) - USD ($) | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Apr. 20, 2023 | Aug. 01, 2021 | Mar. 31, 2025 | Mar. 31, 2024 | Sep. 30, 2024
Related Party Transaction [Line Items] |  |  |  |  |
Credit limit amounted |  |  | the Company’s major suppliers for a roll-over credit limit amounted to RMB1,000,000 (approximately $141,000) with a period of five years, expiring on March 16, 2026, that can be used during the Company’s purchase transaction. Additionally, a separate roll-over credit facility of RMB2,000,000 (approximately $285,000) has been granted by this major supplier for the Company’s purchase transaction during the fiscal year ended September 30, 2025 |  |
Operating lease | $ 3,589 | $ 40,486 | $ 19,583 | $ 19,649 |
Jinshan Yao And Ke Chen [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Bank loans amounted |  |  | 551,215 |  | $ 569,995
Ke Chen Jinshan Yao [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Bank loans amounted |  |  | 1,390,439 |  | 1,437,814
Chengdu Small Enterprise Financing Guarantee Ltd [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Bank loans amounted |  |  | 275,607 |  | 284,998
Ke Chen [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
loans borrowed |  |  | $ 413,411 |  | $ 0

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