Friction Stay Hinge a. Material (Stainless Steel) : 304, 403, 202, Iron b. Size : ... , 3.0mmd. Groove width : 15, 18, 22mme. Packing : EPE form, Heat soak protective wrap, Plastic wrap, or custom request.Friction Stay Hinge1) With ... ), Europe Qualanod(2004,edition 15th), American Standard AAMA611-98 products. Friction Stay Hinge