Merits: Using TYZ/AT series raise borers,you can get higher productivity,less cost,more safety in operation,easier labour and better quality than that of drilling and blasting method.

• 优点：使用TYZ/AT系列天井钻机钻进天井和普通凿岩爆破法相比，生产效率高，操作安全，工人劳动强度轻和成井质量好，该产品体积小、效率高、结构简单、维修方便、安全可靠，深受用户欢迎。