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发明名称
HIGHLY VITRIFIED ARTIFICIAL SAND DRY MANUFACTURE
摘要
申请公布号
JPS57188450(A)
申请公布日期
1982.11.19
申请号
JP19810071404
申请日期
1981.05.14
申请人
SHIN NIPPON SEITETSU KK
发明人
NAKAGAWA AKIRA;IWAMI KAZUTOSHI;WASAI TADASHI
分类号
C04B18/14
主分类号
C04B18/14
代理机构
代理人
主权项
地址
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