? ? ? Company Information ? ?? Our products have been exported to the US, Australia, South America, Canada, Japan, Sinapore, Middle East, etc. ? Rotary?heads?with?auger?drill bits can be used in the following civil engineering work: ? ? Product Description ?? ? Trenching Tunnelling Quarrying,?Surface?Mining Excavation?Work Refurbishment,?Demolition Road?Construction Pile?Head?Cutting Auger?Drilling Wood?Grinding Underwater?Works Steel?Industry ? ? Our Services ?? Any requirement please contact us, we'll do the best service for you. Hope we can establish a good business relationship. ?