In addition to their strength and corrosion resistance, fiberglass sewer pipes also offer excellent flexibility and ease of installation
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2025-08-14 15:16
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National Grating Fiberglass Trench and Drain Grates are available in two standard resin systems. Each providing different levels of corrosion protection. Both resin systems meet Class 1 Flame Spread Rating per ASTM E-84 test standards.