Changyi Haosen Biotechnology Co., Ltd.
Changyi Haosen Biotechnology Co. , Ltd. is the most professional manufacturer and exporter of thiourea dioxide and thiourea in China. Purity is 99%min. Our production capability is more than 7000MTS/ year. And more than 80% of them have been exporting to many countires and regions in the world and earned good reputation! If you have any interest, please feel free to hi me!