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Long Spiral Drilling Pipe
Retail price
0.0
元
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元
Number of views:
1000
Product serial number
Category
CFA Tool
Quantity
-
+
Stock:
0
Product description
Parameters
Long spiral drill pipe can be divided into 2 types, single walled and double walled, with the former continuously concreting through the hollow stem whilst the auger is progressively withdrawn, then inserting steel cage; while the latter continuously feeding in air to reduce rotation resistance when drilling.
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