... warp, UV resistance & long life, no worm-eaten, color stability, easy to maintain, and slip resistance. wpc deckingspecificationW3. ... high density 3High capacity of UV-resistance, and color stability 4High resistant to mositure and termites 5Easy to be installed ... resources 8Barefoot friendly, anti-slip, no cracking 9Weather resistant, suitable from-40 degree to 60 degreecertificateISO9001,ISO14001,CE