... Redwood & Yellow. optionalSurface: Smooth, Brushed, Scratched, Grain & Sanded optionalMaterials: WPC(wood plastic composites)Applications: Garden, Lawn, Balcony, Corridor, ... but the stronger compression resistance and no crackb. Wood grain ,natural, bectiful,and great stain resistance performancec. ... ,such as sliding, casement, awning ,double/single hung...etc.We has formed a complete industrial ...