Unaudited Consolidated Satatements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,945,153	$ 1,374,165
Adjustments to reconcile net income from operations to net cash provided by operating activities:
Depreciation	3,221,159	3,092,511
Amortization of land use rights	47,307	46,727
Decrease in allowance for doubtful accounts	(312,411)	(46,631)
Warrant modification expense		235,133
Stock-based compensation expense	132,956	101,590
Changes in operating assets and liabilities:
Notes receivable	(264,582)	6,324
Accounts receivable	555,644	(825,725)
Inventories	518,191	(1,603,500)
Prepaid value-added taxes on purchases	(192,840)	913,184
Prepaid and other current assets	(60,237)	(32,988)
Advances to suppliers	(473,782)	(1,379,275)
Accounts payable	(1,740,644)	(188,919)
Accrued expenses	(409,484)	171,338
VAT and service taxes payable	(34,233)	54,685
Income taxes payable	(63,582)	(112,101)
Advances from customers	300,212	1,217,798
NET CASH PROVIDED BY OPERATING ACTIVITIES	5,168,827	3,024,316
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(5,824,104)	(3,263,008)
NET CASH USED IN INVESTING ACTIVITIES	(5,824,104)	(3,263,008)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on capital lease	(130,633)	(127,477)
Proceeds from bank loans	3,041,002	2,213,264
Repayments of bank loans	(2,240,739)	(1,897,083)
(Increase) decrease in restricted cash	(1,312,433)	31,618
Increase (decrease) in bank acceptance notes payable	1,312,433	(31,618)
Net proceeds from sale of common stock	1,767,546
Proceeds from exercise of warrants		198,142
NET CASH PROVIDED BY FINANCING ACTIVITIES	2,437,176	386,846
EFFECT OF EXCHANGE RATE ON CASH AND CASH EQUIVALENTS	27,354	6,551
NET INCREASE IN CASH AND CASH EQUIVALENTS	1,809,253	154,705
CASH AND CASH EQUIVALENTS - beginning of period	1,445,728	1,152,607
CASH AND CASH EQUIVALENTS - end of period	3,254,981	1,307,312
Cash paid for:
Interest	169,653	160,396
Income taxes	1,374,120	777,646
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property and equipment acquired on credit as payable	840,277
Series A preferred converted to common shares		13,198
Common stock issued for future service		$ 54,800