国家17项建材行业标准4月起实行2008年,国家发改委批准了228项行业标准,其中建材行业标准17项,这些标准将于08年4月1日起实施。具体标准名称如下:门窗用玻璃纤维增强塑料拉挤中空型材、明矾石膨胀水泥、水泥胶砂耐磨性试验方法、自应力水泥物理检验方法、粉刷石膏、建材工业用铬合金铸造磨球、水泥胶砂缩试验方法、水泥助磨剂、水泥强度快速检验方法、水泥工业用 National 17 building materials industry standards in effect since April 2008, the National Development and Reform Commission approved 228 industry standards, of which building materials industry standards 17, these standards will be implemented on April 1, 2008. Specific standard names are as follows: Glass fiber reinforced plastic windows and doors pultruded hollow profiles, alum stone expansive cement, cement mortar abrasion resistance test methods, physical testing methods of self-stress cement, plaster, building materials industry chromium alloy casting ball, cement Rubber sand shrinkage test methods, cement grinding aids, cement strength rapid test methods, cement industry