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        Model (thread) pitch ΦI.C S Φd α
        Model:RT16.01W-A60B (thread) pitch:0.5-1.5(48-16)ΦI.C:9.525S:3.52Φd:4α:60°
        Model:RT16.01W-G60B (thread) pitch:1.75-3.0(14-8)ΦI.C:9.525S:3.52Φd:4α:60°
        Model:RT16.01W-AG60B (thread) pitch:0.5-3.0(48-8)ΦI.C:9.525S:3.52Φd:4α:60°
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