Tel 0086-19817745290; +8619817745290
Email bd@blocksynth.com
Tel +86-512-68323658 +86-18168183658
Email sales1@artkmedchem.com
Tel 028-64950838 17340131597
Email bd-focus@focuspharm.com
Tel 025-66113011 18112977050
Email sales01@aikonchem.com
Tel 021-20432219 13918097649
Email li_jinfei@acblock-lab.com