Tel 8485655694
Email sales@alchempharmtech.com
Tel 0086-19817745290; +8619817745290
Email bd@blocksynth.com
Tel +86-27-50766799 +8618062016861
Email contact@labnetwork.com
Tel 571-89925085
Email sales@amadischem.com
Tel +86 (531) 88811783
Email sales@trio-pharmatech.com (International market)