タイトルまたは説明

1.Popular in Ameriacan Market
2.material:aluminium
3.power adjustable
4.back check function
5.Ansi**6.
4 ***0 series door closer can support door weight in large range,from *5kg to **0kg.
1.commercial and residential use for multi-size door,adjustable spring power and closing/latching speed
2.standard,top jamb and parallel arm installation
3.standard with check back function,delay action optional
4.precise heavy duty rack and pinion
5.factory tested to meet ANSI standard **6.4
6.high quality anti-freezing hydraulic fluid
7.finish color upon request
8.UL listed
9.***4 BC/BF:Spring power from size 1 to size 4,barrier free for elderly or handicapped