SG-73 Floor Spring : Center hung, double acting with 90 degree stop-device, 2 section speed adjustable valve.
SG-73 Floor Spring Description: 1. Door Weight: 130kg.2. Door Width: 800-1200mm3. Door height: 2100-2400mm4. Max. Open Degree: 180°5. Hold Open: 90°6. Features: Center hung, double acting with 90°stop-device, 2 section speed adjustable valve.7.This product has got quality certification from national technique department after 500,000 cycle tested, accord with QB/T 2697-2005 technolgy standard.
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