Electrolysis degreasing, electrolysis pickling and straight line flooding fulling process are adopted while pre-treatment.
预处理采用电解脱脂、电解酸洗、直线溢流漂洗工艺。
A newly developed high efficient degreasing and rust removing solution for pre blackening treatment of high strength bolt is presented.
根据高强度螺栓发蓝工艺的独特性，研制适用工艺要求的常温除油除锈液，在生产中应用良好。
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