The company's man-made diamond production and sales for the world.

公司的人造金刚石产量和销售量为世界第一。

An efficient method and the path to improve the man made diamond quality and catalyst selecting for synthesizing superior special type of diamond were proposed on the basis of the above discussion.

在讨论分析的基础上，为提高人造金刚石质量与合成优质特殊类型金刚石用触媒的选择指出了有效的方法与途径。