Email：info@crootmed.com (Company) Info@crootusa.com (USA Office) wubingmin@crootmed.com (Bingmin) amberwang@crootusa.com (Amber)

Phone/WhatsApp：+1 689-276-1006 (Company) +86 186 0129 2788 (Bingmin) +1 647-581-4560 (Amber)