... purity is more than 95%. We extract the mustrard oil for the mustard seed, which are imported from Canada. ... BUILD DALIAN TIANKE BIOENGINEERING CO., LTD., WHICH WOULD SPECIALIZE IN THE DEVELOPMENT OF ENVIRONMENT-FRIENDLY PRODUCTS AND PLANTS, TISSUE ... , SOILLESS CULTURE, AND SUPERCRITICAL FLUID EXTRACTION, AND ALSO IN COOPERATION WITH THE PARENT COMPANY, DEVELOP THE HORSERADISH PEROXIDASE EXTRACTED ...