Qingdao Guangzhengxin Petroleum Instrument Co., Ltd. is located in the beautiful coastal city of Qingdao. We are a high-tech enterprise dedicated to the research and development of drilling fluids, completion and merging instruments, serving major oil fields, petrochemicals, research institutes, and universities. The company has a professional technical team that strictly follows ISO9001 standards in every aspect of design, process, inspection, raw material procurement, production, storage, and transportation, and is effectively monitored. The products also fully comply with the requirements of the American Petroleum Institute API standards. We sincerely appreciate the support and care from users across the country. We adhere to the principle of character to create high-quality products, regard quality as our life, and sincerely dedicate every product. We are willing to work with major oil fields, research institutions, and universities to jointly develop new products, meet the different needs of users, better serve users, and create a better future together!