A general rule of thumb for conventional room-temperature cured polyesters is 1/32 inch of shrinkage per linear foot when reinforced with 25 weight percent glass content.
常规室温下固化聚酯的经验法则是：直线每一英尺的收缩量为1/32英寸（当加强玻纤重量比为25%时）。
In the case of the heavier weight of equipment than the recommended load capacity per 4 pieces, the higher range model of FOOT MASTER should be adopted.
设备负载将超过四个脚轮的适当负载限度时，由于四个以上安装也承受不了负载，应安装上一个阶段的模型。
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