Active Member
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[China]
Address: #3-2-401 sandian desiyuan industry zone wuhan hubei,China
Contact name:
Wuhan Yijue Tengda Machinery Co., Ltd |
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Procedure
--- OEM or customized products
--- Track the production
--- Arrange for inspection if needed
--- Take photos before delivery
--- Arrange for customs clearance
--- Track the shipment
--- Send related files to customers
--- Track quality problems if any
--- Collect suggestions from customers
Engineering often encountered relatively hard bedrock strata, large boulder layer and hard permafrost layer, if the direct use of helical drill or rotary drill bit drilling more difficult, you need to first use the cylindrical ring bit cut out ring groove , And then with the use of spiral drill or rotary drill bit drilling, which can greatly improve the drilling speed. The cutting of the drill bit can be divided into picking and cone, and the cutter bit is used for drilling soft rock and permafrost. Drilling wheel is used for hard bedrock drilling.
