濾布; 減速機; 氣動元器件; 羅茨風(fēng)機; 污泥脫水機; 水下曝氣機; 潛污泵及水處理藥劑

Filter cloth; Reducer; Pneumatic components; Roots fan; Sludge dewatering machine; Underwater aerator; Submersible sewage pump and water treatment agents