The chemical contents in the sand quartz has reached national standards of silicon rawmaterial for plate glass production after combined treating by magnetic separation plus diluted acid dipping.
Foamed concrete series products with cement, coal ash as raw materials, in line with the state advocates green environmental protection building of energy-saving materialstandards and requirements.
泡沫混凝土系列产品以水泥、粉煤灰为原料，符合国家提倡绿色环保型建筑节能材料的标准和要求。
3
The seamless steel tube production is characterized by complicated procedures, various sorts, non-unified standards, small batch and high requirements for rawmaterial quality.