<th id="fnn7z"><progress id="fnn7z"></progress></th>
???????
?????? ?????п????????λ???????????????????п????????????????1959???????????????????3000???...
?????п????????λ???????????????????п????????????????1958??????裬1959???????????????????3000???
???????????????????????????????????п????????????????????????????????????????????????Χ?????????????????????????????????????????????????????????????????????????????????
?????????0.91%??п1.25%??CaF2?13.49%??????????Χ?????CaF2?18.48-0.9%??
?п?????????????????пβ????????????????????????????п?????????????????????????????150-350??/????????1000-2000??/????????200-300??/?????pH?8.6-9.5????????????δ?????????????ξ??????????????????????λCaF2??97%??SiO2??1%??CaCO3??1%??CaF2????????66.80%??β???λ??CaF2??5.72-10%??????λ(CaF2??14.52%??
?????з????е????????????豸?????????????????????????????????????????С??????????鰱????????????豸???????????????????ι???????????????豸???????з????е????????????0371-64588838
