Target Markets: Within our plant, quality controls are strictly taken according to the ISO, CE, and API 6D quality standards. Our sets which lead the industry in durability, reliability and efficiency are built to the highest standards and go through rigorous tests before being released to the market. With superior quality ensured, our products are extensively used in all kinds of trades, such as the industries of oil refining, chemical fiber, chemical engineering, power station, chemical fertilizer, medicine, aviation, and national defense scientific research. They are exported to more than 20 countries and regions, mainly the USA, England, France, Japan, Italy, Canada, and Singapore.