Standard Practice for Performing Accelerated Outdoor Weathering of Factory- Coated Embossed Hardboard Using Concentrated Natural Sunlight and a Soak-Freeze-Thaw Procedure

 
  • 用集中自然光和浸水-冻结-解冻程序进行工厂涂覆压花纤维板室外加速风化的标准规程
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