Tel +8618523575427
Email sales@conier.com
Tel +86-0371-86658258 15093356674;
Email laboratory@coreychem.com
Tel 571-88938639 +8617705817739
Email info@dycnchem.com
Tel +86-19930503259 +86-19930503259
Email cherry@crovellbio.com
Tel +86-85511178 +86-85511178
Email peter68@ptchemgroup.com