短语词组短语cold -extrusion protruding mould 冷挤压凸模cold closed upsetting -extrusion 冷闭式镦挤rubber cold -feed extrusion 橡胶冷喂料挤出Cold -hot extrusion Forming Moulds 冷cold extrusion -heading technology 冷挤镦工艺 返回 cold extrusion