首页 防火测试中心 刷新 返回 登录
ASTM C1289 贴面硬质泡沫聚乙氰尿酸酯隔热板的标准规范
日期:2012-02-13 21:24
ful in building construction. The materials are classified as follows: Types I, II, III, IV, and V. Under Type I are Classes 1 and 2. Under Type II are Classes 1, 2, and 3. Under Type II Class 1 are Grades 1, 2, and 3. Rigid polyisocyanurate thermal insulation boards shall be based upon the reaction of an isocyanate with a polyol, or the reaction of an isocyanate with itself, or both, using a catalyst and blowing agents to form a rigid closed-cell-structured polyisocyanurate foam. The insulation

2/14 下一页 上一页 首页 尾页

防火测试中心


返回 刷新 WAP首页 网页?/a> 登录
12/23 23:52
½ www.400ai.com www.50ppp.com www.zzz13.com ڷƱ ݷƱ Ʊ ɳ˽̽ ɳվŻ