BOTTOM SAND IMPROVING AGENT IN CULTURING POND AND IMPROVING METHOD OF BOTTOM SAND
- 专利权人:
- NIPPON SHOKUSEI KK
- 发明人:
- SAKATE MICHIHEI
- 申请号:
- JP19930340858
- 公开号:
- JP2535309(B2)
- 申请日:
- 1993.12.08
- 申请国别(地区):
- 日本
- 年份:
- 1996
- 代理人:
- 摘要:
- 来源网站:
- 中国工程科技知识中心
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