CERTIFICATE OF CONFORMITY: CE & ISO9001-2000 HGBJ/T-D (NO.2) – Three Pieces With Door Stopper Series Material: Stainless Steel or Fine Steel Size: 150mm*100mm*3.5mm (the shaft dimension: 23mm) Performance & Characteristics This series of Hydraulic Adjustable Door Closer Hinge is composed of two pieces of closer hinges and one piece of hydraulic hinge. It performs the functions of door closer, hinge and door stopper. The patented design simplified the process of installation and adjustment. Special spare parts which are composed of 150 rolling pins to go with 50 steel balls can efficiently reduce the twist friction and extend the service life. And it overcomes the defects of the traditional oil leakage by using a hydraulic oil cylinder to work with a latex sealing piece. And the special position system can stop the door at any angles within 180° Applications Service the doors within 85kg and can be installed with ordinary hinges.