our company located in northwestern china, ningxia province, is a worldwide modern antibiotic production base since 2001.with the starting products of 2000tons tylosin tartrate and phosphate , have been exported to nearly 80countrier areas with high reputation for both quality service . sales tylosin, tilmicosin, ...

Qingdao Haozeng Chemical Co.,Ltd build in 1999,it have good experience and source feed additive animal drug business.it been buying agent for some big user from all of the world,and it selling many factories.it supply contact service between factory buyer.it strongly follows products,1,DECOQUINATE 2,tulathromycin ...