TIANJIN CITY DIAN RONG BILOGICAL TECHNOLOGY CO.,LTD. is a global new star in the field of biologicalgums and a professional high£level microbial polysaccharides manufacturer. We have specialized R&D team, experienced salesmen, and good management system. Our products are widely used in oil drilling, construction materials ect areas. And been exported to Europe, America, Middle East, Southeast Asia, Africa and other areas.
Based on our long term tracking and knowing of oil drilling industry¡¢const...
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