-Capacity 10% improved -Discharge size 0.074-0.4mm -Operating flexibility -Fine workmanship Gongyi Guoxin Machinery Factory is a manufacturer and exporter of mining machinery, metallurgical equipment and organic fertilizer equipment in China. Our main products are rotary drum dryer, ball mill machine, crusher, All of themare ISO9001:2000 and CE confirmed. They are excellent quality and enjoy good ...