ASTM D1056 柔软多孔材料或膨胀橡胶标准规范.
ASTM D1056 Standard Specification for Flexible Cellular Materials. Sponge or Expanded Rubber
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ASTM D1056 柔软多孔材料或膨胀橡胶标准规范.
ASTM D1056 Standard Specification for Flexible Cellular Materials. Sponge or Expanded Rubber
中国防火网免费咨询电话:400-666-7290
网址:www.firete.com
邮箱:info@firete.com