fiberglass duct 中文意思是什麼
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Specification for contact molded fiberglass glass - fiber - reinforced thermosetting - resin duct and hoods
接觸壓模製玻璃纖維增強熱固性樹脂管和護罩規范 -
Standard specification for contact molded " fiberglass " glass fiber reinforced thermosetting resin duct and hoods
接觸模壓制玻璃纖維增強熱固性樹脂管和防護罩標準規范
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