The design and test of bolting and ropesupport under composite roof are introduced, its technical theory and practical application are also expounded.
介绍在复合顶板下，锚杆和锚索支护的设计和试验，并阐明了该技术的机理以及实践中的具体应用。
2
The main product has followed several types: Z1 type (stone soil, take the stone as the major and stone collapsed) : Bolt, supportrope, steel mesh, the grid network.
主要产品有以下几种类型：Z1型(石夹土，以石为主、石崩)：锚杆、支撑绳、钢丝网、格栅网。
3
This article introduces the application of how to construct the coal depot, and combined support with anchor mesh shotcrete, steel strape, anchor rope, steel and concrete.