研制了以磷酸二氢铝为粘结剂，硅砖粒、粉为骨料的保温冒口易割片。
Phosphate knock-off core of scrap silica brick aggregate for steel castings has been developed with experiment method.
研制了以磷酸二氢铝为粘结剂，硅砖粒、粉为骨料的保温冒口易割片。
Phosphate knock-off core of scrap silica brick aggregate for steel castings has been developed with experiment method.
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