近年来，随着我国城镇化进程的快速发展，复合井盖的需求越来越大，无论是城市规划，还是公路建设，都需要大量使用强度高、性能好的优质复合井盖产品，所以，树脂复合井盖等复合材料复合井盖逐渐取代了传统的铸铁复合井盖和水泥复合井盖，成为复合井盖产品的主流。

那么，作为专业的复合井盖生产厂家，应该怎样选择复合井盖模具呢?选择复合井盖模具的关键是看模具的制造材质，具体来说，对于尺寸和形状稳定、产量较大的产品，应该使用高性能的制造材料。而对于形状多变、制作周期长、要求精度较高的产品，因为其模具的加工费大大高于模具的成本费用，所以也应该选用高强度的材料。对于形状简单、承受应力小、制造难度小的复合井盖产品，就应该采用改形的模具，这种模具通常使用铸铁、钢或非金属材料制造。

n recent years, with the rapid development of China's urbanization, growing demand for composite covers, whether it is urban planning, or road construction, require extensive use of high-strength, high-performance composite covers a good product, so resin composite composite manhole covers and other composite materials gradually replaced the traditional cast iron manhole covers and cement composite covers composite, composite covers mainstream products.

The key, then, as a professional manufacturer of composite covers, how to select composite covers mold it? Choice is to look at the composite covers mold mold manufacturing material, specifically, the size and shape stability, yield larger product, you should use a high manufacture of material properties. As for changing the shape of a long production cycle, requiring high precision products, because of its mold processing fee is much higher than the cost of the mold, so it should use high-strength materials. For simple shape to withstand stress, difficulty composite covers the manufacture of small products, should be used to change shape of the mold, this mold typically use cast iron, steel or non-metallic materials.