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前言在美国,由于领土辽阔,各地情况差异很大,因而提供了在不同条件下试用各种类型破碎设备的机会。在碎石行业中固定式和移动式的破碎设备都得到应用,但从发展趋势看,愈来愈多的碎石生产商正转向采用移动式破碎设备。用户关心的是:这种设备能否以最低成本,破碎出适用的石料。对美国现有的破碎设备和预计将装设的破碎设备进行列表比较,从中可以看出除锤
Foreword In the United States, because of the vast territory, the situation varies greatly from place to place, thus providing an opportunity to try out various types of crushing equipment under different conditions. Both fixed and mobile crushing equipment are used in the gravel industry, but from the development trend, more and more gravel producers are turning to mobile crushing equipment. The user is concerned about whether this equipment can break the applicable stone material at the lowest cost. A comparison of the existing crushing equipment in the United States and the crushing equipment to be installed can be seen from the list.