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Products are manufactured in accordance with American Standard (ASME, ASTM, API), Japanese Standard (JIS), German standard (DIN), GB (GB, JB, HG) and other standard production of " East well" brand butterfly valve, gate valve, check valve, globe valve, ball valve, power plant valve, hydraulic control valve, balance valve, reducing valve, adjusting control valve and pumps based on more than 50 series and nearly a thousand products. Products have been awarded the patents of "Efficient Hard Seal Butterfly Valv |