1) Universal mounting application: standard, top-jamb, parallel arm &
sliding arm installations
2) Extrusion aluminum body, highly precies closer for high performance.
3) Trine separate valves give adjustable closing and latching speed
4) Built-in hold open fuction
5) Optional back check function.
6) Optional delay action fuction

Features:
1) Easy to adjust the speed, all speed screws on the font side of door
closer.
2) Quality hydraulic fluid provide good performance for wide range of
temperature (-30℃ to 40℃)
3) Heavy duty rack and pionion, high strength extrusion aluminum body
with needle bearing for highest quality.
4) None of the components in a concealed door closer are visible when
the door is closed.
5) Be hidden in almost all doors thicker than 40 mm or more and offers
excellence performance.
6) Available in silver(alum), antique bronze (duro) and glod. Other
color upon request