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          Welcome to Qinhuangdao Tianzi Chemical Industry Co.,Ltd Website!
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          Tel:+86-335-5978826
          Address: Green Chemical Industry Garden, Lulong Economic Development Zone, Qinhuangdao City, Hebei Province, China.
          Mobile:+86-15227250682,
          +86-13313337629
          E-mail:tzchem@163.com;
          tzchem@tianzichem.com
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          CAS number: 13845-18-6
          ???: NH2SO3Na
          ??????: 2,000?
          ???: 118.98

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          ≥99.5

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          ≤0.5

          PH?(10% ???)

          7~8

           


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