Daqing Huaguan Chemical Machinery Manufacturing Co., Ltd. was established in 1998, located in Fangxiao Central Village, Ranghulu District, Daqing City. The company is equipped with 20 management and technical personnel (including 8 salespeople) who have a college degree or above, 6 skilled technicians with technician qualifications (or related certifications), and 24 workers of other categories. It has one office building, one main factory, and one auxiliary factory (covering a total area of 10,000 square meters). The laboratory is equipped with 15 sets of various testing equipment. The quality assurance system of the products has passed ISO9001 quality system certification, and product quality is strictly implemented according to the ISO9001 standard to ensure that the product quality meets the requirements of users. Our company specializes in the production of bellows mechanical seals, spring mechanical seals, and various types of sealing gaskets and braided packing for oilfield and petrochemical enterprises. By drawing on advanced bellows welding technology from home and abroad, the welded metal bellows and mechanical seal products produced by our company, together with the previous spring tube mechanical seals, form a series of mechanical seal products. All the components of the sealing series are designed and manufactured by our company, forming an integrated service system that includes design, manufacturing, installation, and after-sales service based on user needs. The products are mainly used in the combined stations and transfer stations of major oil extraction plants in the oilfields, as well as in the ethylene glycol pumps, residual oil pumps, high-temperature export pumps, coolant pumps, and acid-base pumps of the petrochemical general plant's refining company. Tests have shown that the products have properties such as heat resistance, oil resistance, acid and alkali resistance, corrosion resistance, and cold resistance; the products have been widely promoted and used in oil extraction plants, natural gas, and refining companies. The motto of our company is "the customer is God, quality is life, and service is the purpose," serving the oilfields and chemical enterprises in Daqing. We have now joined hands with Tianhong High-Tech Engineering Company to research and promote gasoline welding and cutting tools. In the near future, we will certainly make significant contributions to the sealing industry and welding and cutting industry in Heilongjiang, as well as to the second entrepreneurship and sustainable development of the Daqing oilfield.