Sự khác biệt giữa màu trắng Đen và Alumina hợp nhất màu nâu …
Màu sắc The most obvious difference between white màu đen and brown fused alumina is their color White fused alumina has a white or off-white color while black fused alumina is black or dark gray and brown fused alumina is brown or tan This color difference is due to the impurities present in the alumina before it is melted and fused