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GMT Ultra-Heavy Two-Way Open Arm Floor Spring Glass Hinge Closer for Door Wegiht 230-300KG/507-661lb Width: 1200-1500mm/47.24-59.06" - Amazon.com
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Floor Spring, Glass Door Hinge 110KG 2 Way Open Floor Spring Hydraulic Buffer Ground Hinge for Door Weight,Door and Window Hardware and Locks - Amazon.com
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Universal floor spring, similar to Dorma BTS 84 (FS-S9300 series) | Taiwan Automatic Sliding Door Closers & Locks Hardware Manufacturer | D&D
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FTVOGUE 2 Way Open Door Closer Stainless Steel Floor Spring Hydraulic Buffer Ground Hinge Glass Door Hinge Closer for Door Weight 110KG, Other Door and Window Hardware and Locks - Amazon.com
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