This are widely used in the following applications, construction sites, laying of large pipes; installations and adjustments of machinery and electric apparatus ;installing and erecting of masts or other structures; loading and unloading heavy and bulky g
This are widely used in the following applications, construction sites, laying of large pipes; installations and adjustments of machinery and electric apparatus ;installing and erecting of masts or other structures; loading and unloading heavy and bulky g
它被广泛应用于下面的领域：建筑基地，躺着的大管子，机械和电动设备的调节装置；安装和竖起柱子或其它建筑物，装卸又重又笨的货物，拉紧粗索；堆积林木，阻止移动等。