date:Jun 29, 2012
lity and Technical Supervision Bureau also began an investigation after learning about it on Chinese social networking site, Weibo.
It added that sales were limited to the Shanghai area.
The recall is the second involving key Chinese dairy firms in as many weeks.
Earlier this month, Yili International Group pulled six months worth of its QuanYou infant formula from shelves across the country after authorities found elevated levels of mercury in the product.
Cleaning food-grade lye
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