Friction Stay for UPVC in Pollachi, Tamilnadu, India identifies the required friction stay stack height, to measure the stack height of an existing friction stay. It is fully closed so that all of the arms are stacked on top of each other, measure from the bottom arm of the stay to the top arm. And also, identifies the type of friction stay. Friction stays with a wide opening angle for emergency exit and also incorporates an easy-clean position for safe cleaning of the glass from the inside.