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    ???????14-11-27      ???????

        1???????????????????????SiOz??????С??80%??????????0.2??5mm??????????????????0.2mm?596??0.2??0.3mm?25%??0.3??1.5mm?550-6??1.5??3mm?10????????3mm?5%???????????GB6566-86???????

        2??β???????SiOz??????С??40M??Ms0??????????204??NazO+Kz0????С??0.5??????????????2???????????????GB6566-86???????

        3??????????????SiOz??????С??90%??pcao??????????0.5%??Mgo??????????0.2%?????????????4????Kz0+NazO ??????????0.5%?????????????GB6566-86??????????????????????5%??

        4???????????????SiOz??????С??70M?????????????4%??Mgo??????3%???????????GB6565-86???????

     

     

     

     

     

     

     

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