MQT-90/2.3A Pneumatic anchor drill rig Features:roofbolter series points for gas pneumatic anchor drilling machine ,Website:http://www ... coal rock roadway,rock roadway anchor support operations and tunnel project,set drilling,stirring,installed in a body ... anchor protection work and tunnel engineering,set the drilling,stirring,installed in a body.ItemSpecificationMQT-90/2.3AMQT-100/3.1MQT-100/3.1MYT-100 ...