... aging. 6. PVC expansion boards are light, can be stored and moved conveniently. Commonly used tools can be used for PVC expansion boards ... . 7. PVC expansion boards can be drilled, sawed, nailed, planed ... , MPa 12-18, elastic modulus in bending, MPa 800-900, impact strength, KJ/m2 8-15, item, unit, result, elongation at ...