欧美性xxxxx极品少妇直播,西西人体自慰扒开下部93,精品1卡二卡三卡四卡老狼,古代闺房呻吟撞击h,欧美人玩PS4和XBOX的比例

重?zé)V砂主要成分及用途制造及化工電器工業(yè)
發(fā)布時間:2023-03-13 13:39
  |  
閱讀量:1303

重?zé)V砂

以MgO為主要化學(xué)成分,礦物成分為菱鎂石等軸晶系經(jīng)高溫?zé)Y(jié)的堿性耐火原料,產(chǎn)品化學(xué)成分穩(wěn)定、純度好、密度高,廣泛應(yīng)用于各種堿性鎂制品、定型、不定型產(chǎn)品的加工制造及化工電器工業(yè)等。

The product is Mgo as the main chemical composition.and axis forthe periclase crystal,sintered at high temperature

alkaline refract-oryraw materials,it has features of stablechemical composition,gooddensity,widely used in basic

magnesium products,shaping,unshaped理化指示Specification


3333.jpg

3333.jpg