As a specialized manufacturer of flange fittings, we have sophisticated equipments and advanced techniques, such as smelting works, large and common lathes, drilling machinery, forging press and various auxiliary equipments. Hence, a complete line from smelting metalworking and distribution has been formed up. Flanges ranging from DN15-4500 to GB, ANSI, JIS, European standard and nonstandard have been greatly recognized by the mass users, made of 304, 312, 304L, 306, 306L, 2520. 904LMn2Ti, carbon steel and heat resistant steel. The products have been widely used in the industries of petroleum, chemical, foodstuff, metallurgy, construction, and electric power.