VALTECCN is an industrial butterfly valve manufacturer that provide all kinds of butterfly valves. Our butterfly valve factory producing concentric butterfly valves, eccentric (double or triple Offset) butterfly valves, wafer-style butterfly valves, lug(semi or full) butterfly valves, flanged and double flanged butterfly valves. Our butterfly valve factory in China adhere to JIS, JPI, API, ASME, EN, DIN, ISO standards.https://www.valteccn.com/butterfly-valve/