Waste Printed Circuit Boards (PCBs) are worthy very much to recycle, because the metallic grade is more hundred times than the nature mineral resources.
废弃电路板中蕴含的金属是天然矿藏品位的几十倍甚至几百倍，具有重要的回收价值。
This article mostly introduce reconstruction and recycle of close circuit variable pump.
主要介绍闭式变量柱塞泵的功能改造和再应用。
This article mostly introduces the reconstruction and recycle of close circuit variable pump.
主要介绍闭式变量柱塞泵的功能改造和再应用。
应用推荐