Qingzhou Natural Fields Biotechnology Co.,Ltd is the Branch of Guangtong Group. We can supply products of other branches with best quality and price. The product include Natural colorants,Vitamin K1 series , Silkworm Eggs,Fertilizer,Ventilation Equipments,etc. Contact:Nell Bi Phone: 8613864680314, 86-536-3252601 Skype: 425436072@qq.com Whats app: 008613864680314 Email: neilbi@naturalfields.cn Web: www.naturalfields.cn