The curing agent may be a polybasic acid anhydride.
所述固化剂可以为多元酸酸酐。
By using sulfobetaine derivant as leveling agent and polybasic acid as complexant of interfering ions, the brightener SN-1 for nickel plating is developed.
以磺基甜莱碱的衍生物为整平剂，多元有机酸为干扰离子络合剂，研制了SN - 1镀镍光亮剂。
By using sulfobetaine derivant as leveling agent and polybasic acid as complexant of interfering ions, the brightener SN-1 for nickel plating is developed.
以磺基甜莱碱的衍生物为整平剂，多元有机酸为干扰离子络合剂，研制了SN - 1镀镍光亮剂。
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