Plant covers an area of 50 acres, is a professional engaged in the production of ceramic products businesses.

厂区占地50亩，是一家专业从事陶瓷制品生产的企业。

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Is a professional engaged in the electronic base material of the development, production and sales of high-tech enterprises.

是专业从事电子基础材料的研制、生产及销售的高新技术企业。

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Shanghai Lingrui Machinery co., Ltd. is a professional engaged in air compressor research, development, sales of well-known enterprises.

上海凌瑞机械有限公司是一家专业从事空气压缩机研究、开发、销售的知名企业。

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This should not have to be explained to serious professional adults engaged in business today.

FORBES: Microsoft's Cynical Response to Google's Patent Post

The Transport Workers Union and the Association of Professional Flight Attendants were engaged in similar processes.

FORBES: How Labor Made US Airways, AMR Merger Happen

Meanwhile, health care corporations and professional organizations have actively engaged the Blue Dogs.

NPR: Who's Representing The Uninsured On Capitol Hill?