Shandong Guangtongbao Pharmaceuticals Co., Ltd,

1. Main products: chlorophyll series products, vitamin k1 series products, natural phytol, vitamin D3 microcapsule, 2,6 diphenylphenol, vitamin k2 series products. 2. World largest manufacturer of chlorophyll series and vitamin k1 series. 3. The only manufacturer of chlorophyll and vitamin k1 who went through the audit by U.S.A. FDA, the only manufacturer who obtains Chinese GMP certifica...