Tengzhou Zhongzheng Biotechnology Co., Ltd. was situated in tengzhou city shandong china. The trafic is very convenient. Near from beijing and shanghai, there are qingdao port and rizhao port in the east. It is near from lianyungang port in the south. So we can deliver our products to the destination very conveniently. The company was built in 2002, and dedicated to producing and selling the food and feed additives, such as calcium propionate, calcium acetate, sodium propionate and sodium benzoate. In the past, we gain high evaluation from our customers with our good quality products and service.
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