欧美成人一区二区三区电影_精品国产精品网麻豆系列_天天爽夜夜爽夜夜爽精品视频_国产精品网红直播

淀浦河西閘口因你而美--PTFE膜工程

日期:2021-09-16

    PTFE膜材簡介:聚四氟乙烯(PTFE)涂層,PTFE(商品名Tamn)涂層耐腐蝕、防潮、防菌、老化慢、耐高溫、耐酸性、難燃、阻燃、火焰擴散指數低,燃燒產生有毒氣體(280℃以上高溫才可使PFE分解),顏色僅乳白色(初始為米黃色),保質穩定期大于30年,常為玻璃纖維膜表面涂層。

  



欧美成人一区二区三区电影_精品国产精品网麻豆系列_天天爽夜夜爽夜夜爽精品视频_国产精品网红直播
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