Blackening Furnace Mesh Belt: Blackening Furnace Mesh Belt is made by soaking in environmental protection black liquor. It is completely different from the traditional sodium nitrite solid melting blackening， which greatly improves the production efficiency， reduces labor intensity and cost， improves the working environment of workers， and achieves the requirements of high efficiency， energy saving and environmental protection. Suitable for spring， springs， hardware， standard parts， fasteners， (no oil， no rust) blackening process， suitable for mass production.
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