Concealed Door Closer

SG-988 Door Closer: 1. Applied to maximum width 1000x2400mm single direction open door, door weight is within65-80kg, with two speed adjustment.2. Precise seal prevent oil leakage.3.High quality castingaluminum alloy body, coated with quality and gloss paint.4.Painting plastic moving arm against erodent:5.With locking function(Position at90°and non-positioning at 180°)6.In accordance with China State QB/T2697-2005 standard, and gurantee is two years.