Automatic Sensor Door Closer

Features:
Firm without damage to the wall, easy to install, high temperature resistant.
304 stainless steel wire rope national standard steel wire.
80000 times of stretch and stretch test were not passed.
Conventional 100G-800G, suitable for all kinds of doors.
Adhesive force area is larger, more durable, more firmly withstand the maximum tension.
Anti-oxidation, anti-corrosion, no rust, stable, wear-resistant, weather-proof, hydraulics, quiet, safe shut-off device.