特种作业操作资格证有效期为多少年依据Zheng件定制,排版联系V:772794141
The validity period of the special operation qualification certificate is customized according to the Zheng piece for many teenagers, and the typesetting contact V:772794141
以上为机器翻译结果,长、整句建议使用 人工翻译 。
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