we are BEIJING GAOGENGDA CHEMICAL PRODUCTS CO., LTD , mainly selling liquid mercury and other chemicals, we have three types of mercury, such as 99.9%,99.99%,99.999%, they are used for different industry, medical treatment, electrical equipment and gold metallurgy,,and have various packing and many years experience of exporting , we can provide you reasonable  price and right payment terms, if you are interested in it .please contract me sincerely, welcome to our factory to visit if you are free.  thank you.