Bolting Jumbo is an economical and applicable equipment developed for the full-section or stepped excavation method of small and medium-sized tunnels. This equipment is not suitable for bolt hole operations and also suitable for tunneling and advancement. Support holes, lock-foot holes and other operations, with its compact structure and comprehensive functions, are widely used in various drilling operations in roadways and tunnels in railways, highways, national defense culverts, mines, hydropower and other fields.
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