Is the compactor operation certificate in other places useful? Validity period of construction worker certificate?

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Where is the website for Anhui safety engineer registration information? Please consult customer service wechat / Tel: 15310979412!..

Is the intermediate engineer rated by Jiangxi universal in China? It can also be said that it is judged by relationship, can it? Add our customer service wechat or telephone consultation: 15310979412.