| 摘要 |
<p>This invention relates to the production of frits especially suitable for use in contact with foods. The frits are essentially free from cadmium and lead and consist essentially, in weight oercent on the oxide basis, of:
<TableDetails id="tabla01" num="0001"><Image id="ia01" he="19" wi="65" file="IMGA0001.TIF" imgContent="table" imgFormat="TIFF" inline="no" /></TableDetails></p> |
