... Tread Riser Nosing Stringer Board Starting Step or Bull Nose Winders Trim Balustrade3) Shape: spiral, circular ... Edge finishing: Full Bull nose, Demi- Bull nose bevel, bull-nose, eased, round edge etc.8) Processing for the surface: polished, honed, flamed, bush-hammered, sand-blasted, pineapple and ... , engineering Stone, stairs, thin tile and regular tile and so on. Our imported granite materials ...