... .Acid-and-alkali-resistant, corrosion-resistant, crack-resistant, UV-proof, free of paint and maintenance.6.Can be shaved, nailed, drilled ... enjoys the advantages of both wood and polymer materials, but free from their shortcomings. It's an excellent substitute for wood ... , fencing, bench, pavilion, wallboard, etc., and other unique feature products. 9.5mm thickness wallboard