1.3000 series door closers are ones of provided with two stages functions with adjustment of closing and latching.
2.3000 series door closers are suitable for installing as....

China1.B2022AW, B2023AW B2024AW closers, which can be installed in the door frame,
2.They have transfer speed valve each from head to foot, left/ right-hand all is suitable.
3....

9000 series door closers are four valves door closer provided with
beautifulappearance, advancedstructure
, perfect performance.The speed of shutdown and lockup is adjustable.It is....

1.8000 series has aluminum die casting crust & aluminum crust total 2 kinds
2.Closing & latching speed can be adjusted Has the buffer function after door 65 pened, and the....

6000 series door closers, which is the first choice for the present fire-resisting door in the country, is provided with beautiful and lightness appearance, reasonable construction....