Affordable single contract value does not exceed 5 times the company''s registered capital works, including:

1, single-cell volume of 600 cubic meters and below, poultry, livestock manure biogas;single-cell volume of 800 cubic meters and below the anaerobic biological treatmenttank works;

2, stand-alone capacity of 300,000 kilowatts and the following thermal power project of flue gas desulfurization; 40 tons and the following industrial and coal-fired central heating boiler flue gas desulfurization project;

3, medium-sized industrial projects including the nuclear industry noise, harmful gases, dust, sewage, industrial waste comprehensive treatment works;