... block making equipment 2. capacity 30,000m3-300,000m3 per year 3.ISO9001 Certificate Zhengzhou Yufeng Heavy Machinery Co., Ltd has ... preservation, sound isolation, high strength,processable property and so on, what’s more, the raw materials of AAC are abundant. Especially ... , fixed persons are organized in one shift. 100,000m3 per year of AAC Plant ---- China Yufeng brand