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About usThe company covers an area of 140000 square meters, has 8 main production workshops, has more than 600 employees, and has more than 300 sets of advanced heat treatment, machining, inspection, measurement, and experimental testing equipment. It is currently a strong comprehensive capability in China. Manufacturing enterprises.
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Product Introduction
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14
2022
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05
How is the hollow steel used to make the drill rod produced?
Production of hollow steel for drill rod: electric furnace smelting-LF furnace refining-bloom continuous casting machine casting billet


Production of hollow steel for drill rod: electric furnace smelting-LF furnace refining-bloom continuous casting machine casting billet-preliminary rolling mill rolling intermediate billet-deep hole drilling machine drilling hole-adding mandrel-semi-continuous rolling mill rolling hollow steel-controlled cooling-quality inspection-fixed-length cutting-transferred to the drill rod production line.


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