Ningxia Kingvit Pharmaceutical CO.,LTD, set up in 2010, inherits manufacturing and sales of vitamin B12 from Ningxia Duowei-a company with experiences in this field nearly 10 years. Kingvit possesses ...

  • CyanocobalaminCyanocobalamin
  • MecobalaminMecobalamin
  • Vitamin B12 Feed AdditiveVitamin B12 Feed Additive
  • Vitamin B12 Food AdditiveVitamin B12 Food Additive
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