... , such as Stone Shower panel (tub Surround), Window Sill, threshold. These Material can be granite,marble ... 60''x28'' or other size etc ,also prefabricate them as per your drawing.And window sills have 4 ... '', 5'' , 6'' or other size in width. Advantage ... all kinds of Tub surround (shower panels, window sills ,thresholds ,or others) for your projects 2) We ...