In 1991, Mr. Pan Xuping contacted and learned jewelry processing technology.

1991年，潘旭平先生接触、学习珠宝首饰加工工艺。

youdao

In 1991, Mr. Pan Xuping contacted and learned jewelry processing technology.

1991年，潘旭平先生接触、学习珠宝首饰加工工艺。

youdao