Xinxiang Ruifeng Mechnical Equipment Co;Ltd. produces vibratory screen,vibrating feeder and crushing machine of 300 odd kinds and 20 odd series and their complete matching parts.Large RKDS track changeable constant thickness screen, large stationary vibratory divided-flow screen and large flexible drive single-shaft drawing machine developed independently by our company are national patented products. Large oval constant thickness screen, large linear screen , circular vibratory screen, and coal powder screen produced by our company are extensively used in large many enterprises in China.