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API type spiders which have threaded stricture are installed on the upper of the rotary table.
They are mainly used for clamping and supporting of casing and tubing pipes.
Design and manufacture by API SPEC 7k.
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Size
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Diameters range（in）
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Conical degree
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Max torque（tons）
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8.5/8/100
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2.3/8-8.5/8
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1:3
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100
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10.3/4/100
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9.5/8-10.3/4
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