WUHAN, CHINA – Haigong (Hubei) Import and Export Co., Ltd., a professional Chinese commercial vehicle exporter focusing on sanitation, engineering and special-purpose trucks, has officially put its newly upgraded HOWO TX7 chassis vacuum sewage suction truck into global sales, with a standard 15 cubic meters tank capacity and fully customizable tank volume to satisfy diversified overseas municipal, industrial wastewater and septic tank cleaning demands across Africa, Southeast Asia and the Middle East markets.