Hailongyuan' s chitosan oligosaccharide (COS) is produced by using high quality chitosan extracted from deep- sea snow crabs. The final product becomes natural non- toxic, small molecular weight, easily soluble in water.
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Contact Us
Tel:+86-532-82673605
Fax:+86-532-82651805Overseas Business（WhatsApp）: + 86 13792483250
E-mail:sale@hailongyuan.com
URL:www.hailongyuan.com
Sales Center: Room 2619-2621,
Block 2 Noble Plaza, No.328 Dunhua Road,
Qingdao City 266000, Shandong Province, China
Factory Address: No. 688 South Industrial
Road, Changcheng Town, Zhucheng City
262200, Shandong Province, China