... for housing balcony railing, stair handrails and so on. Color: According to customer demand customization. 1.Product type: curtain wall series, push and ... pull window & door series, Casement door & window series, ground door & window series, generic decorative series ... , Electrophoretic coating, grainy transfer.5.Aluminum extrusion process: Drilling, Cutting, Stamping, Milling. ...