XML 65 R57.htm IDEA: XBRL DOCUMENT v3.22.2.2
Advances to Suppliers, Net (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2022
USD ($)
Advances to Suppliers, Net [Abstract]  
Prepaid to construction $ 2.7
Construction material, description It usually takes 3 to 6 months for the suppliers to deliver raw material for our equipment production and takes up to 6 to 12 months for the suppliers to deliver the construction materials.