1.The cylinder is made of high quality cast iron. 2.Double ways opening. 3.Hold-open:105, 90

Feature:l The cylinder is made of high quality cast iron .l Provided with door stop function and explosion--proof device .

l Max opening angle in each direction .l Standard can be chosen .

l Suitable for wooden ,glass and aluminum ect,all kinds of doors .

l Inside the frame : height can be adjusted within 4mm, width can be adjusted within 5mm between left and right length can be adjusted within 7mm. l It adopts low temperature anti-freezing hydraulic oil and the applicable ambient temperature can reach -20°C-+45°C .

Specifications:

double cylinder floor spring 6040 EN2