Longrun has advanced technical equipment: Exact number-control lather, Lie type band saw bed, clearner, engrave machine, Heat-treatment Furnace, and so on. Company produces stainless steel flange according to the standard of ANSI/ASME, DIN, JIS, BS, GB, SH. The main material we used is 304, 304L, 316, 316L, 321, 316Ti, etc. We can also produce Non-standard flanges as per the drawings and samples provided by customers.

With goal" Quality-first, honesty-based, supplying high-quality and efficient service sincerely",longrun has formed a set of strict quality-testing standard from the entering of raw material. Our products are widely used in many key-building engineering in China, and exported to USA, Japan, Canada, Germany, France, Belgium, Southeastern Asian countries and regions. Our Flanges are trusted deeply by customers for its excellent quality.