(b) the porto city macro dust equipment manufacturing co. Ltd., with its registered address at the south end of the roundabout in the economic development zone of poker city, with its registered body, the market supervision authority of the beak city, represented by a legal person, li company, which operates on general items: special equipment for environmental protection; sale of specialized equipment for environmental protection; manufacture of coal-fired flue gas desulphurized nitrous equipment; sale of coal-fired flue gas desulphurized equipment; manufacture of wind machines, fans; sale of wind machines, fans; manufacture of material handling equipment; sale of material handling equipment; construction of metal structures; sale of drawing, computing and measuring instruments; sale of drawing, computing and measurement instruments; sale of steel-strangling products for construction; manufacture of metal materials; sale of metal materials; installation services for general mechani...