首页>
外国专利>
CONSTRUCTING OF FISH BANK GROUPS BY CHEMICALLY TREATING SURFACE OF ROCKS WHICH CONTAIN ELEMENTS TO CULTRE SEA WEEDS AND THEREAFTER THROWING SAID ROCKS INTO SEA
CONSTRUCTING OF FISH BANK GROUPS BY CHEMICALLY TREATING SURFACE OF ROCKS WHICH CONTAIN ELEMENTS TO CULTRE SEA WEEDS AND THEREAFTER THROWING SAID ROCKS INTO SEA
