| 摘要 |
<p>PURPOSE:To provide a solid gold ball which is colored in the bright and district white. CONSTITUTION:The body part of a solid gold ball is colored distinctly white by compounding 2-12 pts.wt. titanium oxide, 0.001-0.04 pts.wt. blue pigment and violet pigment, and in a wt. ratio of blue pigment/violet pigment of 15/85-65/35, into 100 pts.wt. basic rubber material.</p> |
