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ELEVATOR SPEED GOVERNOR GX-187, LIFT SAFETY PARTS, TWO -WAY GOVERNOR PERFORMANCE PARAMETERS: Rated speed ≤0.63m/s; 1.0m/s; 1.5-1.6m/s; 1.75m/s; 2.0m/s Sheave diameter Φ200 mm ;Φ240 mm ;Φ300 mm wire ...