obtained the qualified certificae awarde by National Mechanical Depart-mentlts also promising to API Approved Enterprises and CE Obtained Enterprises. Not only entitled the Excellent Products with New Science & Technology in Zhejiang Province are the ANSI type cutting sleeve rotating plug valves,
Science & Technology in Zhejiang Province are the ANSI type cutting sleeve rotating plug valves, but achie-ved the National Patent with patent no: 99227876.7, with many years quality certificate inspected by the county, provincial and national inspection departments.
ASTAIN insists on Scientific and technological innovation, which is our dream to be the bigest valve company in China. And privide best products and services to all over the world. Our products is strictly according to the international standards, such as: ISO, API/ANSI\BS\DIN\NF\JIS/JPI\GB/JB etc.
Since establishment, the company has always innovated and created new products by science and technology to develop the quality products conforming to the standards of ISO, API&ANSI of America, BS of Britain, DIN of Germany, NF of French, JIS & JPI of Japan,