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2. Quality of Materials The quality of the galvanized iron used in roofing panels significantly influences durability and performance. Ensure that the manufacturer uses high-quality, corrosion-resistant galvanized steel with appropriate zinc coating. Request specifications and certifications that confirm the quality of their materials.
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These standards are designed to evaluate critical characteristics such as air permeability, water tightness, durability, and thermal performance. Manufacturers must conduct thorough testing of their products to demonstrate compliance, ensuring that their door strip seals can withstand various environmental conditions and performance demands.
ce cetification door strip seal
