After 32 years\' development and innovation since our establishment, we are more and more professional in technical service and can manufacure products with all kinds of material, shape and size. Especially in elbows, tee, reducer, flange and pipe cap etc, we have gained more than 20 product patent, and hundreds of technology patent. Also, we have gradually taken an ireplacable role in High-pressure, high-temperature and anti-corrosion area.