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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Cash Flows from Operating Activities:    
Net loss $ (955,892) $ (475,976)
Depreciation and amortization 733,798 679,882
Reversal of allowance for doubtful accounts (2,066) (10,036)
Changes in assets and liabilities:    
Trade accounts and other receivables 120,370 (434,306)
Advances to suppliers (9,319) 91,388
Inventories 264,348 (552,686)
Trade accounts payable (316,568) 100,539
Other payables and accrued expenses (347,982) (450,887)
Advances from customers 21,982 (392,021)
Prepaid expenses (93,829) (24,111)
Net Cash Used in Operating Activities (585,158) (1,468,214)
Cash Flows from Investing Activities:    
Purchases of property and equipment 55,964
Net Cash Provided by Investing Activities 55,964
Cash Flows from Financing Activities:    
Proceeds from lines of credit 511,125
Borrowings and interest from related party 6,856 7,112
Net Cash Provided By Financing Activities 6,856 518,237
Effect of Exchange Rate Changes on Cash (6,655) 30,989
Net Decrease in Cash and Cash Equivalents (584,957) (863,024)
Cash and Cash Equivalents at Beginning of Period 1,423,838 2,029,971
Cash and Cash Equivalents at End of Period 838,881 1,166,947
Supplemental Cash Flow Information:    
Cash paid for income taxes
Cash paid for interest 22,928 22,928
Supplemental Noncash Investing and Financing Activities:    
Accounts receivable collected with banker’s acceptances 151,692 243,750
Inventories purchased with banker’s acceptances 217,420 222,875
Conversions of Note Payable to common stock 450,000 650,000
Issuances of stock for intangible assets $ 1,365,000