Screw rotor profile: 1-main, 2-gate, 3-rotor external and 4-pitch

Screw rotor profile: 1-main, 2-gate, 3-rotor external and 4-pitch

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Screw rotor profile: 1-main, 2-gate, 3-rotor external and 4-pitch

Screw rotor profile: 1-main, 2-gate, 3-rotor external and 4-pitch

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