Tel 18210857532; 18210857532
Email jkinfo@jkchemical.com
Tel 21-20338288
Email ordercn@merckgroup.com
Tel 51288865780
Email sales@biosynth.com
Tel +7 (49) 6524-0091
Email screen@ibscreen.chg.ru
Tel 416 305 9979 (Canada)
Email north.america@otavachemicals.com