Tel +86-371-+86-371-66670886
Email info@dakenam.com
Tel 571-88938639 +8617705817739
Email info@dycnchem.com
Tel
Email Info@alfa-chemistry.com
Tel +86-85511178; +86-85511178;
Email peter68@ptchemgroup.com
Tel +8618058761490
Email info@gihichemicals.com