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Glasswool is definitely an insulating product made out of glass fibers, that's made by melting glass at high temperatures after which you can drawing it into high-quality fibers.Open up conclusion/terbuka. Grating open end di sisi kiri dan kanannya terbuka tanpa ditutupi plat tambahan. Biasanya grating open up conclude dijual lebih terjangkau.Anda