“微膨胀”用英语怎么说？

微膨胀耐可塑料 、 耐磨 耐可塑料.Little expansion refractory plastic material, abrasion - resistant and refractory plastic material.目前微膨胀混凝土在钢管拱桥中广泛应用.Presently, expansion concrete is widely applied to arch steel - tube - bridge.微膨胀自密实...