Dandong Colossus Group Co Ltd, located in Jiangwan Industrial Park in Hezuo district, is China’s largest enterprise producing mechanical seal and high-power magnetic drive pumps. The main products comprise six major categories and more than 1,000 varieties, including mechanical seal and support systems, magnetic drive pumps, couplings, welded metal bellows and precision casting accessories. The products are widely used in petroleum, chemical industry, metallurgy, mining, pharmacy, power generation, paper making, and food and navigation sectors. Bellows, mechanical seals and magnetic drive pumps are part of the provincial high-tech industrialization program and National Torch Plan. The company has been identified as a national grade high-tech technology enterprise.