Concealed Door closer EN 4 and hold open unit

Concealed integrated cam action Door Closer with slide channel and hold open unit arm including opening angle limiter upto 120?. Spring the guide rail is only visible when the door is open. For right and left closing doors, up to 80 kg leaf weight and width 1100mm leaf Fixed Spring size EN 4 adjustable closing force, closing speed, latching force and back check as per EN 1154 and CE marked. Silver finish. Non-handed version