一、无低电流腐蚀的镀硬铬添加剂镀铬添加剂3HC－25，电流效率可达22％～27％，平均25％。光亮度和覆盖能力、硬度以及电流密度范围都比标准镀铬有提高，而且镀层呈现微裂纹状态。价格比进口同类产品低50％。二、1#超级镇镇光亮剂最近，研究成功了出光和整平性能比3＃镀镍光亮 First, no low-current corrosion of hard chromium plating additive 3HC-25 chromium additive, the current efficiency of up to 22% to 27%, an average of 25%. The brightness and coverage, hardness, and current density range are all increased compared to standard chrome plating, and the coating is microcracked. The price is 50% lower than that of imported similar products. Second, 1 # Super Town Town brightener Recently, the successful research of the light and leveling performance than 3 # nickel plating bright