下载香蕉视频

400-887-1300 下載香蕉視頻:

certifications

  • Gbt34005-2017 test method for water vapor transmission performance of tubular insulation products

  • Gbt20974-2014 rigid phenolic foam products for insulation

  • GBT17794-2008《柔(rou)性(xing)泡沫橡塑絕熱制品》

  • GBT 35608-2017《綠色(se)產(chan)品評價(jia)技(ji)術要求絕熱材料》

  • GBT 13350-2008


官(guan)方微信