Hangzhou high-tech enterprise certificate
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
