... handle 2 Material:aluminium alloy or stainless steel 3 Brand:QH or OEM 4 ISO9001 Certificated DescriptionAluminium door handleMaterial of Handle ... cylinder position 92mmDoor thickness58-70mm/41-50mmThe drawing of the QH-DH001 door handlesCOMPANY PROFILELocated in Xiaogang, Beilun District, Ningbo, ... certification one-time in 2009.WORKSHOP&EQUIPMENTS ISO9001-2008 QH-DH001 HIGH SECURITY DOOR HANDLE