Henan Shenlong Petroleum Drilling Tools Co.,Ltd

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Steel-making
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 factory >> Steel-making

Electrical arc furnace,ladle refining furnace,electro-slag remelting furnace,vacuum degassing furnace and argon-oxygen decarburization furnace ensure high quality of ingots.

Steel-making

Steel-making

Steel-making

Steel-making
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Non-magnetic Drill collar      Drill collar

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