... convenie We are professional manufacturer in producing PVC windows&doors, and thermal insulating aluminium Windows & doors in china. We can offer ... a variety of materials can be chosen,as:pvc ,aluminium,steel,stainless steel,wood,etc.Glass1. Single, double, ... ,16mm, etcOpening styleSliding, casement /swing, turn-tilt, tilt-sliding, single-hung, double-hung, etcSpecification(size, color,etc.)Different ...