... , house , building etc. 2.Material: Aluminium& Plastic 1.Window lock use for sliding window. Suitable for the office, house , building ... of samples are FREE provided.4). On-time delivery5).Good quality and reasonable price, most of products export to USA, Germany ... can make moulding ourselves.we can supply you hook lock,crescent lock,moon shape window lock,window hinge,window handle,window roller