No.1775 West Fangongting Road,, Weifang, Shandong, China

Shandong Guangtongbao Pharmaceuticals Co., Ltd., is the largest manufacturer of chlorophyll series products and vitamin k1 series product, natural phytol, menadione, 2, 6, diphenyl-phenol. More than 8...

21 Qingdao, Shandong

With their best quality, competitive cost, good service and obvious oversea market advantage, we are confident we will build our company to be one of the largest VK3 and chromium sulphate manufacturin...