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Model SG-500 Advantage: 1. High quality casting iron material for the body; 2. Automation coating production line; 3. High quality rubber ring. Avoid oil leak. 4. Brass speed adjust screw; 5. Got through quality certification from national technique department after 500,000 cycle tested, accordedwith QB/T 2697-2005 technolgy standard 100% 304SS material cover. High quality.
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Hot Sale Spring Door Latch