Process introduction: the finished tube of DIN series high precision drawing bright seamless steel tube is used as phosphating steel tube, and the steel pipe is phosphating with the imported environmental phosphating liquid to form the black phosphating protective film, and the anti rust oil is absorbed by the micropores in the phosphating membrane for antirust treatment.
Main features: steel tube color: Black Medium bright, steel pipe surface color uniformity is high, consistency is strong, appearance is more beautiful, steel pipe anti rust performance is good.
Main application: Black Phosphating pipe is mainly used in hydraulic system.
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