Welcome to Dongguan Hongrui Model Technology Co., Ltd., a leading Black Oxide Factory specializing in the production of high-quality black oxide coated products. Our black oxide process produces a durable and corrosion-resistant finish that is perfect for a wide range of applications in industries such as automotive, aerospace, and firearms, At our state-of-the-art facility, we utilize advanced techniques and machinery to ensure the highest level of precision and quality in every product we manufacture. We offer a variety of black oxide coating services for components, fasteners, and other metal parts to meet the specific needs of our customers
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