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Long Spiral Drill Pipe
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Number of views:
1000
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Multifunctional Spiral Drill
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Product Name: Long Spiral Drill Pipe
Product Introduction：
Long spiral drill pipe can be divided into single wall hollow drill pipe and double wall drill pipe, the former when drilling to a predetermined depth, along with the drill tool at the same time continuously poured into concrete, then inserted into the steel cage. The latter allows air to be fed in while drilling to reduce rotational drag.
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