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Author：Handan DELI Fastener Co.,Ltd Source：HANDAN DELI STANDARD PARTS CO., LTD Publication time：2020-05-04 14:54:56 Browse：3583number Baidu

The Labor's Day originated from 1st May in strike by the U.S. worker.It is the national day in more than eighty countries in the world.

Mainly in order to commemorate the worker strive for legitimat rights.

DELI showered honours to the labor's!

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