Hangzhou high-tech enterprise certificate
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關于我們
A hi-tech enterprise engaging in research, development, production and sale of polymeric material-chlorinated polymers and related processing aids
Hangzhou high-tech enterprise certificate
Hangzhou Keli safe production license
Hangzhou pollutant discharge permit
Jiangsu high-tech enterprise certificate
Jiangsu Keli safe production license
Jiangsu Province, pollutant discharge permit
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