
18mm Waterproof Hardwood Core Pine Plywood for Roof. Waterproof Hardwood Core: 18mm plywood with waterproof properties and hardwood core options. Customizable Core Material: Core available in Poplar, Birch, Eucalyptus, Hardwood, or Mixed Core. Flexible Customization: Full customization, minor customization, and flexible options from samples or designs. Wide Size Range: Available in multiple sizes like 1220x2440mm, 1250x2500mm, or custom requests. Multiple Thickness Options: Thickness ranges from 2.5mm to 30mm with precise tolerance control. Low Formaldehyde Emission: Meets E1 formaldehyde emission standards for safe indoor and outdoor use. High Durability: Features smooth face, wear-resistant, anti-cracking, and acid/alkali-resistant properties. Factory Direct Supply: Manufactured by a company with 20 years experience and 10 production lines.