Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Inventories [Abstract]

Schedule of Inventory

	December 31,
	2011		2012		2012
	(RMB)		(RMB)		($)
Raw materials		64,898,313		100,328,496		15,961,896
Work-in-process		815,487		4,374,403		695,951
Finished goods		20,492,020		33,577,981		5,342,134
Total inventories		86,205,820		138,280,880		21,999,981