Product waste recycling method for manufacturing e.g. ruby utilized in jewel, involves storing wastes of products at temperature approximately equal to specific degree Celsius, and immersing wastes in cold water contained in container
摘要
<p>The method involves storing wastes of products at a temperature approximately equal to 800 degree Celsius. The wastes of the products are immersed in cold water contained in a container. An optimal temperature for obtaining a desired effect is adjusted according to dimensions of treated pieces placed in refractory crucibles.</p>
