Pest Quarantine of Imported Wood Packaging Material -Frequently . ホーム > 木材こん包材の輸出入 > Pest Quarantine of Imported Wood Packaging . What kinds of treatment shall be applied to WPM prior to export to Japan? . may cause some damage to photo material, wool, leather, plastic products, etc. . 15 are pallets, dunnage, poling board, flashboard, sticker, crating, packing blocks,.