presspaper

amendment 1 规范;;压板;绝缘材料;

Specification for pressboard and presspaper for electrical purposes;

More serious is, partial manufacturer makes beehive shape material with presspaper actually, reoccupy glue is secured inside door plank.

更为严重的是，部厂家竟然用薄板制成蜂窝状材料，用胶水固定在门板内。