ISO 9001 Certified Excellence: See D&D HARDWARE at Big 5 Global, Booth F239 For more than 17 years, D&D HARDWARE has been a cornerstone of innovation and quality in the door hardware manufacturing sector. Our ISO 9001 certification is a testament to our unwavering commitment to systematic quality management and continuous improvement at every stage of production. We take pride in our deep-seated expertise in crafting specialized hardware for Metal, Wooden, and Fire-Rated doors, offering clients a holistic "Door Opening Solution" that addresses both functional needs and aesthetic aspirations.
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