Stainless steel wire mesh surface cleaning, acid pickling and passivation, in addition to the utmost to improve the corrosion resistance, and to prevent product contamination and aesthetic effect. In GBl50 1998 "steel pressure vessel" regulation, there is a requirement for anti-corrosion stainless steel and the surface of the container of the composite plate manufacture should be pickling passivation. "this rule is for use in petroleum chemical industry, pressure vessel, because the equipment is used for direct contact with the corrosive medium phase, starting from the guarantee corrosion resistant corrosion resistance, acid pickling passivation is necessary. In other industry sectors, such as not for anti-corrosion purpose

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