The core material (110) can be formed at low cost in following mode: penetrating glass wool provided with the glass fiber by using a needle to tangle and gather the glass fiber.
以以下方式可以以低成本形成芯材料（110）：通过使用针穿透具有玻璃纤维的玻璃绒而缠结和聚集玻璃纤维。
The core material (110) can be formed at low cost in following mode: penetrating glass wool provided with the glass fiber by using a needle to tangle and gather the glass fiber.
以以下方式可以以低成本形成芯材料（110）：通过使用针穿透具有玻璃纤维的玻璃绒而缠结和聚集玻璃纤维。
应用推荐