product name:Heavy Duty Concealed Overhead Door Closer Adjustable Door Closer;capacity:35-60KG;suitable door width:1000-20000mm;arm length:460mm;body length:230mm;body height:21.5mm;color:silver, brown, gold, white, black, etc;MOQ:500 pcs;sample:could be
a spring (15 Fig 2). The first valve 11 allows fluid to move between the first and second chambers across the entire range of door open to door closed positions and the fluid flow rate through the first valve is adjustable e.g. via a control screw. Preferably there is a second "door...
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Max Door Width 850-1100mm Mounting Dimension 50*50*45mm Max Opening Angle 180 degree Temperature Range - 40 to 45 ℃ Function Optional Back Check Spring Force #2 - 4# Packaging and delivery Selling Units: Single item Single package size: ...