Zhangqiu Zhongnuo Forge and Foundary Co., Ltd. Established in 1998, is one of the most professional flange suppliers in China. The company specializes in flanges including the standards - ANSI;DIN;BS;UNI;JIS;SABA1000/3, also the custom design. It owns forging and casting factory which is well-equipped, and has a severe system for the quality control, which covers every process of the manufacturing ( raw material inspctiion, cutting, heating, gorging, heat treatment, machining, drilling, marking, washing, final inspection, packing, delivery).