Hidden Hydraulic Automatic Hinge for Office Hotel Automatic Door Closer

Superior engineering
5years guarantee, 1 million cycles in the endurance testing
Normal type, Market, Fire Exits, Home, Hotel, Office, Hospital, School, All Purpose
Adjustable forearm
Dual valves to adjust the closing and latching speed, back-check optional
Hydraulic Anti-freeze oil for special temperature under -40Centigrade--60Centigrade
Many color optional, Silver, White, brown
Hold-open optional
Optional parallele arm bracket
Optional plastic cover
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