From Jun 15 to 18, in Zhangjiejie city of Hunan province, the 2011 annual technical exchange meeting of national sintering and pelletizing was organized and held by the sintering & pelletizing information network of China of which Zhongye Changtian International Engineering Co., Ltd. is the leading unit. Over 340 representatives from more than 140 units of the national iron and steel enterprises, research and design institutes and a part of sintering and pelletizing equipment manufacturers attended the meeting.