an important phosphorus resource from where a huge reserve can be generated has been largely ignored. human excreta is indiscriminately disposed into drains every day....
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beantwortet werden. tel: - - pdf download e-mail: european warehouse products in stock more usa warehouse products in stock more spezifikation details faq q&a item standard appearance milky or yellowish fine powder gel strength ( %, °c) > g/cm ph value - loss on drying =< % gelation point ( - °c) residue...
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