埃克森美孚TPO Polyolefin HMU234 塑胶原料概述：
热塑性聚烯烃类（TPO）的防水卷材是一种以乙烯的树脂为基料，他是采用先进聚合技术和特定配方制成的片状热塑性橡胶弹性防水材料，TPO他是近几年在美国和欧洲盛行的一种新材料，配料中不带含增塑剂，是不存在增塑剂迁移的而变脆，具有拉伸强度大、耐穿性好，抗紫外线强，表面光滑、还有高反射率且耐污染等综合的特点，易加工，可焊接、施工方便，完全回收，绿色环保，他可称之为当今世界上顶级的防水材料。绿色环保，无毒、无害、无污染。
特点是绿色环保，无毒、无害、无污染具有了长久的可塑性，还能够回收利用的机械强度高，物理性能优越，尺寸和颜色要稳定延伸率大，变形能力强长期耐候性，抗紫外线及耐热耐老化性能非常优越??更耐低温，-40摄氏度无裂纹离火自熄性有效抵抗有害化学物质、工业污染物侵蚀，耐磨损、抗穿刺、高反射率，抗紫外线，符合节能和冷屋面标准接缝通过热风焊接形成一体,牢固可靠，具有长期可焊性施工方便，可根据基面、工期选择不同的施工工艺。
埃克森美孚TPO Polyolefin HMU234 热塑弹性体塑料应用：
1、适于制作耐热件、绝缘件、减磨耐磨件、传动件、医疗及电子零件。
2、可作较高温度下使用的齿轮、风叶、阀等零件，可代替不锈钢使用。
3、可制作螺丝、紧固件及连接件。
4、电机、转子、机壳、变压器的电器零件。
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"We've given in," he announced to the assembled men. "There was no help for it. The cruiser has promised us quarter. Lower the ensign."
As the torn, tattered, and smoke-begrimed Red Ensign was lowered and untoggled, wild yells burst from the throats of the ruffian crew. They did not know how to cheer; they could not if they did. It could only be compared with a concerted roar of a hundred wild beasts.
The shouts ceased, not abruptly, but in a long-drawn-out howl. The captain of the pirate cruiser was shouting himself hoarse in an endeavour to obtain silence. When comparative quiet had been gained, he stepped to the end of the bridge and raised a megaphone.
As the torn, tattered, and smoke-begrimed Red Ensign was lowered and untoggled, wild yells burst from the throats of the ruffian crew. They did not know how to cheer; they could not if they did. It could only be compared with a concerted roar of a hundred wild beasts.
The shouts ceased, not abruptly, but in a long-drawn-out howl. The captain of the pirate cruiser was shouting himself hoarse in an endeavour to obtain silence. When comparative quiet had been gained, he stepped to the end of the bridge and raised a megaphone.