Zhengzhou tower crane driver's license is currently an internship certificate of the construction department, and it will be turned into a formal certificate one year later. I can't find the certificate online for the time being, so I need to call the security checkpoint to confirm the authenticity of the certificate. It can be handled directly in Henan Jian 'an Safety Education and Training Center, near huanghe road Jingba Road, about six or seven hundred yuan. Details can be searched online.