The registration address of zhengzhou e-tong standard is on the south side of the town of yong-hoon, newzhou, henan province, on the south side of the second road and on the east side of the street is 109th floor of district 7b of south-china city on the east side of the street. The registration authority is the market supervision authority of zheng city. The legal entity is represented by zhang zhang zheng zheng, and operates in a wholesale and retail manner: standard, cable, hardware, construction materials, steel, other chemical equipment (without dangerous chemicals), daily department goods, electrical equipment, fire protection equipment, mechanical equipment, furniture, lighting equipment, water heating pipes, timber, glass, clothing shoes and electronics。