Major advance to halt flow of 'gutter oil'
By Cheng Yingqi | China Daily | Updated: 2013-07-25 07:19
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A community worker (center) in Shanghai recycles used cooking oil on March 6. Public concern over illegal oil pushed Chinese scientists to find ways to fight against "gutter oil". Wu Kai / for China Daily |
University experts say new kit can test purity in one minute
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