NSJ DRILLING.NSJ DRILLING was established in 2001 and is headquartered in Mudanjiang City, Heilongjiang Province. As a nationally certified high-tech enterprise, the company possesses robust technical capabilities, having obtained ISO 9001 and API certifications, and boasts strong R&D and production capacities. Its extensive product portfolio encompasses over ten series and thousands of specifications, forming a comprehensive range of downhole well tools including drill string tools, shock and stuck pipe tools, blowout preventer tools, cementing tools, and fishing tools. With its exceptional quality, numerous products have not only replaced imports but are also widely adopted by major domestic oilfields and national key construction projects. Furthermore, they are exported to international markets across the Middle East, South America, Europe, and Africa. NSJ DRILLING has risen to become one of the industry's top 50 companies, establishing itself as China's most comprehensive and influential professional manufacturer and service provider in the field of downhole well tools.